1uz engine reliability issues forum. the other years are aluminum.

1uz engine reliability issues forum. 1 cu·in) V8, four-stroke cycle water-cooled naturally aspirated internal combustion gasoline engine, manufactured by the Toyota Motor Corporation since 1989 to 2004. Apr 12, 2024 · The 1UZFE's smoothness and reliability made it the top choice for Toyota's premium V8-powered sedans, except for the Toyota Century, which used its own engine design. Any one with a solution, please add your 2cents. To meet Wikipedia's quality standards, this article or section may require cleanup. I know how to work on the M112 and have pretty much figured how to repair the issues I've had with the M112 engine and chassis components and I do all my repairs myself (well with a lot of help from this forum). I have pulled the Idle air control valve (IAC), cleaned greased and refitted, I actually adjusted it out of position, to see whether it Toyota was excellent in both areas. When I first purchased my LX it was a fourth vehicle that I bought mainly because it was a good deal. TL;DR: All else being equal, will an Al block affect the longevity, durability, ad reliability of an engine? It is as simple as just buying the shims and buckets from the newer 1UZ engines that already come with the shims under the buckets stock or is there some custom work involved with doing this conversion. I am hoping to keep this car for a fair while, and considering the engine is already around 10 years old, I figured the 3uz would be beter in the long run. Jul 30, 2023 · Consumer Reports mentioned the 1UZ-FE as an engine known for reliability, capable of reaching mileage over 200,000 miles in a Lexus LS400 example without significant repairs, which highlights just Oct 9, 2023 · I'm looking at buying another ML. The 1UZ is sometimes referred to as the million-mile engine, partly due to a 1UZ-FE-equipped Lexus LS400 that covered the mileage with few problems. The newer engines are larger in cubic, possible stronger parts and timing chain. 0 2JZ-GTE capable of producing more power than I would ever want. In this article I will be comparing the two rods with precise measurements. The main reliability issues that is usually read about on forums or social media, comes from the poor quality work that went into the conversions in the first place from many backyard mechanics. Jul 12, 2010 · 1uz surf cooling issues by jonossiksilvia » Sat Mar 15, 2014 10:51 pm Feb 17, 2013 · My previous vehicle was a 4 litre Jeep, the engine in which is bullet proof so I am looking for a similar long term reliability and natural strength from the conversion. Toyota 3UZ-FE 4. It was brittle and waiting to snap. Sep 20, 2012 · MODELS/ENGINES AFFECTED: This issue affects all Lexus & Toyota models with the following engines: 1JZ, 2JZ, 1KZ, 1UZ, 5E, 1G, 3S The following are some of the models affected: Lexus LS400 - 1990-2000 (in 1997 and earlier models, the problem is extremely common) Lexus SC300 - 1993-2000 Lexus SC400 - 1992-2000 Lexus GS300 - 1993-1996 UZ series engines are pretty damn stout. 7L 3UR-FE, have become synonymous with Aug 20, 2021 · Ignition problems don't seem to be an issue with the non coilpack FZ engines we got in the states. However, not all engines have been equally successful. Sep 13, 2005 · The benefits of overhead camshafts were put to use in the period 1910-1915. However starts great, when warm, or the ambient air temp is high. It increased its reliability and durability. Add in old ass sensors and sticky injectors and whatnot from the donor that had been sitting for years, and there would have been reliability issues. It appeared in 1989 and intended for the largest models of Toyota and Lexus. 0 motors are good too (not sure of the engine code. Jul 4, 2005 · Hey guys, I'm building a 27 track T roadster. So I'm here for help!! I bought it about 1 week ago with over heating issues. The pictures below are to original rods from Lexus, specifically LS400 and GS430. 266 votes, 79 comments. Oct 30, 2005 · The only problem I have with the 1uz comes from the reliability side of things. For a long-lasting V8, the 1UZ-FE is the top choice. 0L Engine (1989-2002 Lexus LS 400, Toyota Crown). Problem No 1. If you want high revving then I'd rebuild the lot with cams, valves,springs higher Jul 11, 2008 · Like Justin pointed out, he's not after getting the VVT to work, if I asume correct the lexus engine uses the oilfeed via the block for the whole head including the VVT, which is operated by a selonoid in the head itself like the 4age 20v. I was pondering this earlier today as I was ordering some parts and thought it would be an interesting topic to discuss. I wonder if this is specific to a V8 design as opposed to an inline 6? Jul 12, 2010 · If its an A34x series auto you can use a jeep auto computer, its then independant of the engine ECU. Feb 15, 2023 · The air then leaves the radiator at the rear into the engine bay (assuming your radiator is mounted out front and in front of your engine). Dec 10, 2021 · Regardless of the version, power was more than adequate for its application but apart from that, the 1UZ-FE stood out when it came to unparalleled smoothness and reliability. Apr 23, 2007 · My question involves the expected reliability of the timing belt, before replacement might be needed? Please answer this question, in regards to a stock (unmodified)LS400? Jan 29, 2025 · Explore the best Toyota V8 engine options, their performance specs, reliability, and applications across various models. Happy hunting! All 98+ (1UZ, 2UZ, 3UZ) engines used 34. Production spanned 24 years, from 1989 to mid 2013, ending with the final production of the 3UZ-FE-powered Toyota Crown Majesta I-FOUR. Feb 28, 2006 · 1uz-fe is areguably the most reliable production engine ever & is also used in both production boats, aircraft, and powerboat racing. I recheck my connection with 3 different wiring Nov 6, 2018 · Hey guys I'm brand spanking new to these belt driven cars and i have bought my partner a 1uz-fe. the other years are aluminum. g. Mar 1, 2020 · Safe boost: Searching old threads suggests that a safe boost level for an unopened junkyard engine is . Is this the same engine as the Lexus V8? Oct 5, 2020 · If this proves to be enough (70mm is the length requred for the 1UZ without modifiying radiator position from memory) I will look into clutch options, and potentually have some bellhousing cast for the 1UZ and possibly other engines if I seem to get enough interest. I have seen guys take late model 4 and 6 cylinder engines and doing this so I don't think i'm Mar 17, 2025 · The Toyota 2UZ-FE 4. Dec 14, 2024 · Reliability, problems and repair of the Toyota 2UZ engine In 1998, the largest representative of the UZ family appeared under the name 2UZ. Due larger sleeves, the 3UZ have small ISS. Unfortunately I'm her half arsed mechanic wannabe. 1UZ Engine Sensors: A Deep Dive into the Heart of Lexus Reliability This blog post explores the fascinating world of sensors that make the legendary 1UZ engine tick. ENGINE The most important items on the 1UZ engines are the timing belt and water pump. Mar 31, 2023 · The 1UZ-FE V8 4. However, the thickness of the sleeves for both engines are the same. D Feb 4, 2006 · XE falcon fuel economy 1UZ and W57 with 3. So, whether you’re looking to build a street machine or a race car, read on to learn which engine is Oct 28, 2024 · Looking for a 1UZ engine for sale? This guide shares tips on where to find reliable options, from online marketplaces to junkyards and specialty shops. 0-liter V8 powerhouse‚ renowned for its smooth operation and reliability. May 15, 2025 · What is the 1UZ engine, and why is it considered legendary? The 1UZ engine is a 4. Mar 8, 2014 · 1UZ Swap: Got my harness back and needed to redo the sub harness that connects to the Cam and Crank Sensors in the front of the motor. This advanced engine has been featured in a wide range of Toyota and Lexus vehicles, offering drivers a thrilling driving experience and Feb 9, 2008 · I understand that these engines are pretty bullet-proof with good maintenance but given the above, should the engine be rebuilt? If not, are there things I can check to have some level of confidence that its in good shape before I do the install? May 27, 2020 · 1UZFE Swap Engine Swaps Dec 20, 2024 · Transplanting V8 into different vehicles along with Aeronautics and Epics in the name of performance. Both engines have a cult following and are often used in high-performance builds. Some internal issues in the family ended up with the car being destroyed and sold by parts, and no, I wasn't even allowed to buy it. It is a 1UZFE with supercharger that has been put into a cobra replica with a five speed manual box behind it. Capacity: 5. What is the 1UR-FE 4. But even so, Iron blocks with an Al head can sometimes create headgasket issues, and as mentioned earlier Al blocks certain engines like the 1UZ and EJ22 don't seem to have been negatively affected in terms of their longevity. We are still holding on the the 1980s (late) techology. From their critical role in maintaining engine performance to their impact on emissions and fuel efficiency, we'll delve into the various sensors, their functions, and common issues. Cali. Then build an intake manifold and install a carburator. The engine has a reputation for running reliably even after covering high mileages, thanks in part to Toyota’s build quality and engineering. Nov 19, 2024 · The Best and Worst Toyota Engines Ever Made Toyota has produced a wide variety of engines, earning a reputation for durability and performance. ) Also the 3. What is the 3UZ-FE 4. The first member of the UZ engine household is 1UZ-FE. problem is the oilfeed from the block to the heads seems to differ in location in vvt heads vs non vvt heads. I travel to az from pa 3-5 times a year and would love to take the conquest but i feel the stock engine is not reliable enough. 0-liter V8 powerhouse developed by Toyota in the late 1980s, originally designed for the Lexus LS400. Is casted iron stronger for FI? 5 days ago · The hybrid engine technology used in many Toyota vehicles has become popular for its fuel efficiency and lower emissions. 6L Engine design and features, its the most common problems and relaibility. 5mm intake valves and 29mm exhaust valves, which is +1mm larger on both than non-VVTi engines COP (coil over plug) ignition, ditching the distributor setup (Early non-VVTi UZ ECU and ignitors known to be unreliable comparatively) 1UZ Engine Sensors: A Deep Dive into the Heart of Lexus Reliability This blog post explores the fascinating world of sensors that make the legendary 1UZ engine tick. If it was me I'd keep in below 7000rpm as a stock motor won't make any more power and just going to cause more wear and reliability problems. Nov 15, 2020 · Hi 361UZ. From my Nov 12, 2007 · Looks like our old folks are getting beat by modern techology. Thanks for the reply. Adults are idiots sometimes man. 45diff My falcon returned, 12litres per 100 km on the last run, 400 kms for 48litres mostly 100kmh at 2400rpm in 5th but a few really good squirts from takeoff and various other bits of accelerating. At the same time diameter of cylinders increased to 94 mm, used the crankshaft with a piston stroke of 84 mm. I have a 08 6 speed 328i that I traded for my 98 LS400. I have an aerospace engineering background but no formal training on cars. This 4-liter engine replaced the old Toyota 5V. Learn about 1UZ-FE reliability, performance, performance mods and more Feb 3, 2016 · Toyota 1UZ-FE engine reliability, problems and repair The engine 1UZ is the founder of Toyota UZ (included 2UZ and 3UZ). May 30, 2017 · Hi all, Finally got my build running, 1UZ into a 1979 Lotus eclat. 25 psi) over sea level pressure I also see horror stories of broken rods and crack ring lands. 0-litre V8 gasoline engine provided for high-end and sports cars of Toyota and Lexus because 1989 to 2002 and. When fitting electric fans you can sometimes get fooled which way they are blowing air; so it’s always a good idea to remove them and check the air flow direction. For example the Ford 2003 Cobra uses casted iron vs. The rod on the left is 1UZ and the new rod Aug 22, 2007 · Hi guys, just thought I would document the problems I have experienced with a 1UZ-FE. Explore its specs, reliability, swap potential, and how it compares to other V8 engines on the market. Discover its specs, reliability, common issues, and best upgrades for performance. Sep 16, 2006 · Talking about the late model 1UZ VVTi, not the early model non-vvti. It cranks only. 0-liter 1UZ-FE engine. As the cam doesn't have to lift the follower, push rod & rocker (and the valve spring have to push them back down Apr 15, 2007 · Traditional Wisdom dictates that Cast Con Rods are not to be used in any Performance Engine - and with good reason - regardless. I think part of the reason the 1uz lasts a long time is that it works efficiently, to minimize engine wear. After refill check oil level. Can UZFE still compete with URFE engines? I think we definately can! Recently availability Aug 6, 2014 · 1UZ-FE V8 manual transmission ? Thread in ' Technical Questions ' started by scottmasterton, Aug 6, 2014. This 328i feels so slow and sluggish compared to my old Japanese v8! My plan is to buy a totaled Lexus LS/SC/GS 400 and take out the 1uzfe Aug 31, 2011 · ^^^ the diesel engine oils also have that little bit extra zinc the 1uzfe being a non rollerized valve train, needs the zinc to not gall, and smear metal from the cam lob on the bucket. Feb 20, 2025 · The 1UZ engine is reliable but has common issues like oil leaks, timing belt wear, and ignition coil failure. I can't remember the exact date or manufacturer but there were quite a few DOHC engines in production in the 1920's. :argue: :lame: Two ways to go for the 1 UZFE / 2 UZFE / 3 UZFE is best illustrated here: Lexus-Toyota V8 Forum > V8 Performance Tech > Engine Modifications > Chevy Rods. However, I think abuse would break anything and everything. Sep 21, 2009 · Hi, Sorry another question - I need to source a fuel pump, running stock ECU, stock manifolds. The cast-iron block was not only cheaper to produce but also provided improved reliability. 5 V6 is great and can be found in the ES350 and RX350 models over the last decade or so. The 3UZ has a larger sleeve than the 1UZ. 6 liter Toyota Supra along with the all-new 1URFE, 2URFE and 3URFE engines. Dec 22, 2021 · Regular oil changes are vital on the UZ, especially when tuned, and will help extend the life and reliability of the engine. Get ready for a thrilling ride! 1UZ manual gearbox. Understanding the symptoms of these problems is crucial for any owner looking to maintain their vehicle’s performance and reliability. The UZ-series, the debutant 1UZ-FE was loved for its strength and dependability, which was pretty unique for a V8 at the time; two more variants followed the 1UZ-FE across 24 years of manufacturing, and Toyota made no secret of This is the first time someone ever compare them side by side. Older 3. We have seen 1000 hp in this forum already. The UZFE engines are a mystery to everyone. There have been a lot of BMW inline-6s that are generally not a pain in the ass to own. In turn, the 1UZ engine changed the out-of-date Toyota’s V household engines, which were used from the 1960s through the 1990s. Honestly from all my reading the only “bad” Lexus engines are those found in the early IS250 models as well as the HS250h, mainly due to DI. May 27, 2007 · The operating temp settles on my motor just a little above the quarter mark which is slightly below normal I think I would like to run my 1uz-fe at normal operating temp too, to avoid premature engine wear. Below is a list of some of the best and worst Toyota engines based on reliability, design, and performance. Parts available:- 1 x Eaton M122 Supercharger as shown • Ported inlet and outlet to improve flow Dec 23, 2019 · Hello, first post on this forum. Apr 10, 2011 · I see in the latest Toyota Zone magazine that this year the Hilux Double cab bakkies will run with the 4. This is a subreddit for fans of Regular Car Reviews on Youtube. Sep 8, 2023 · In the world of car enthusiasts, two of the most popular engines are the Toyota 1UZ and the 2JZ. We'll also touch upon ethical considerations Oct 20, 2016 · Reliability: The 1UZ-FE engine is renowned for its durability and reliability. You can help Wikipedia by introducing appropriate citations. Mar 12, 2014 · Whats the most dependable, cost to power ratio, simplest to install engine swap. I noticed lots car companies use casted iron block for FI application. Unless you are going for SERIOUS horsepower I do not think you have to worry about the 1UZ-FE lasting. It spat water straig Jun 12, 2025 · Discover why the 3UZ engine is a top choice for tuners. Can anyone recommend a make and model of aftermarket fuel pump I can use with the 1UZFE engine? Any help appreciated! Cheers, Mat. They are so ever engineered, it shouldn't give you any issues in a crisp packet like the MX5/Eunos/Miata - it pulled my LS400 to *** speeds and that was 1700kg. 3 liters and it was packed with all present Toyota’s electronic devices and systems, the like in late 1UZ engines with VVTi. Perhaps it's just been another "Internet Truth" all this time. 0 L (3,968 cc, 242. 7L Engine design and features, its the most common problems and relaibility. Featuring a dual overhead camshaft (DOHC) design, electronic fuel injection, and variable valve timing, the 1UZ delivers impressive power and efficiency. The FZ remained the engine of choice in the 70 series abroad until 2009, when it was replaced by the 4. Aug 21, 2016 · The 3UZFE is the least known of the entire UZ engine family, but is it just as good as its big brothers? 3UZFE: Engine Basics Just like the 1UZ-FE, the 3UZ-FE employs a dual overhead camshaft (DOHC) design with four valves per cylinder, optimizing power and efficiency. to/3NebLCc - All-in-One OBDII Scanner https://amzn. sniper Oct 4, 2010 Classifieds Replies 5 Views 2K Oct 25, 2010 Feb 3, 2016 · Toyota 1UZ-FE engine reliability, problems and repair The engine 1UZ is the founder of Toyota UZ (included 2UZ and 3UZ). And the Lexus 1UZ-FE 4. After a very long time of fabricating, designing, building, electrical systems, and making a full custom wiring loom it started first click like a new engine. 0 V8 That gives an extra 100 hp stock. In-depth review of the 1UZ-FE 4. Apr 21, 2015 · The two engine swaps options I like are the Supra 3. Feb 7, 2023 · Between 1989 and 2013, Toyota manufactured the "million-mile" engine. I've just noticed that I didn't put the engine model in, old age creeping in. As a result we got low-speed engine with Jan 7, 2012 · hi all hope everyone had a awesome break over the new year etc. At the same time, the cylinder diameter has increased to 94 mm, and a Mar 31, 2024 · The inception of the Lexus brand was carried by the 1UZ-FE engine: a smooth, yet powerful V8 powerplant engineered for maximum comfort and reliability. 6L Engine? Is it good or bad? Read about Toyota 1UR-FE 4. Apr 9, 2024 · The Lexus 1UZ-FE engine is a true powerhouse, delivering impressive performance and reliability. Introduced in the early 1990s‚ it features a quad-cam‚ 32-valve design‚ producing between 250 to 290 horsepower depending on the model. However, I got a 3UZFE short block for $50 USD and I am dissecting out for R&D purposes. Apr 27, 2023 · In this article, we cover the famous Toyota 4. ^ This. I have purchased wiring instructions from gloverman and wired it up properly and for the time being have the engine What's the consensus on the best overall motor ever made by Toyota, in terms of reliability, durability, and day-to-day usability, and why? Feb 3, 2016 · Toyota 2UZ-FE engine reliability, problems and repair In 1998 in the Toyota UZ series appeared 2UZ and replaced the 1FZ-FE. What is the 2UZ-FE 4. Toyota 1UZ FE Engine Specs Reliability Problems Oil It was a 4 0 litre V8 gasoline engine offered for luxury and sports cars of Toyota and Lexus since 1989 to 2002 and when replaced with the 3UZ FE engine In turn the 1UZ engine replaced the Feb 3, 2016 · Toyota 1UZ-FE engine reliability, problems and repair The engine 1UZ is the founder of Toyota UZ (included 2UZ and 3UZ). It utilises a RPM sensor located behind the bottom crank pulley, with a distributor mounted on the front of each cylinder head, directly driven off a camshaft. But I can't think of a single BMW V8 where I can say the same. (gonna do as much research as possible, hell im not even gonna start the project for at least 12 months) Disclaimer (im The 1UZ is effectively operated as 2 x 4 cylinder engines that are ganged together. Unlike its 1UZ and 3UZ brethren, the 2UZ-FE engine received a cast iron cylinder block to increase reliability and durability. (Sry not trying to make anyone mad ) what would you swap Oct 15, 2023 · Toyota’s decision to opt for a cast-iron block came as a surprise to many, with both the 1UZ and the later 3UZ-FE engine featuring aluminum blocks. What kind of oil does a 1uzfe take? Oil Grade: SL 5W-30 (Below 38°C) - SAE 5W-30 is preferred. May 6, 2013 · I got a bunch of 2jzge's and 1uz's in my local junkyard and was wondering if swapping the 7m for a 1UZ or the 2JZ really worth the money and trouble? If i do decide to get the 2JZGE i will not make it turbo, just want to get that in here. 0-liter V8 introduced in 1989 by Toyota, has become a legendary powerplant known for its exceptional smoothness, reliability, and performance. From the moment it debuted, it redefined what a Japanese V8 could be—offering a perfect blend of smoothness, reliability, and performance. Auto owners looking for a robust engine will find that Toyota’s V8 offerings, such as the 1UZ-FE and 5. Nov 2, 2024 · Dreaming of a 1UZ manual gearbox? Dive into our guide and discover how to transform your car's performance. The 3UZ grown in displacement approximately 4. 4) Is it possible to raise the compression ratio with thinner head gaskets or will I run into problems with the valves hitting the pistons? Thanks, Jul 24, 2023 · For sale I have an Eaton M122 Supercharger with parts to fit a Lexus / Toyota 1UZFE engine minus the manifold. 7L V8 is known for its durability and power. Also, if you're going to do a "spare no expense build" of the turbo 1UZ with all new internals, I'd also recommend you try to break it in on an engine dyno if you have one available nearby. 0-litre engine, which includes variable cam control, direct-spark ignition, and a drive-by-wire throttle. 0 1UZ is a superb, slick The most reliable Toyota engines include the 2JZ-GTE, known for its legendary durability and performance, the 1UZ-FE, a robust V8 praised for its smooth operation and longevity, and the 2AR-FE, a dependable four-cylinder engine used in many modern Toyotas for its balance of efficiency and reliability. Jul 20, 2006 · I've been a huge supporter and still am of the 1uz-fe engines for over 10 years now, and am still amazed today by how durable these little V8 engines I currently drive a 100 Series Land Cruiser which has the 2UZ-FE and I know that they are significant engines and last a lifetime if they are maintained. My plan is to use a 1UZFE v8 and completely discard of the engines computer and controls. 5 Bar (7. [2] Three variants have been produced: the 1UZ-FE, 2UZ-FE, and 3UZ-FE. Aug 20, 2021 · In researching the 2UZ, it seems to leak and burn far less oil. 2jz-gte's have no such following, or OEM confidance in applications demanding such a high reliability rate. The 3UZ-FE engine was first introduced in 2000 and was a result of the advancement of the 4. Dec 13, 2024 · The 1UZ engine is a legendary 4. Apparently they chosen the engine because of its reliability and economy. You can build almost any motor with aftermarket parts and have it handle a lot of power but the 1uz was made to last. 0 engine is a well-regarded engine that is known for its reliability, smooth operation, and impressive power output. Unfortunately information is pretty light on, as neither the owner or mechanic know much about it. I have seen 6 psi 1uzfe is not reliable with bunch of problems. The Best Toyota Engines UZ-FE Series 1UZ-FE, 2UZ-FE, 3UZ-FE These V8 engines are Mar 23, 2015 · Parts (3) LS400 Front Sump 1UZ-FE Engines $150 bux each So. The other is the valley plate which can leak coolant. 0 V8 1UZ-FE engine. Engine is very hard to start when dead cold. Both well documented. Over the years, it’s become a cult favorite among tuners, off-roaders We would like to show you a description here but the site won’t allow us. A stock 1UZ is a much simpler beast than a twin turbo 1UZ, but it would at least give you a head start. 3L Engine Specs, Problems, Reliability. Learn how to fix these problems here. SPARES And ENGINES Comments on: The Ultimate 1UZ Engine Reliability Guide: Common Problems & Fixes Jul 13, 2017 · Engine Swaps - Building Truck, 2UZ or 1UZ? - I just picked up two 2000 Tundras, one which has a brand new factory replaced frame that's rust free. Are the engine mounts and exhausts ports in exactly the same place with the two engines? Dan. Cars with 1uz engine## Cars with 1UZ Engine: A Comprehensive Guide ### Introduction The 1UZ-FE engine, a 4. Feb 20, 2025 · The 2AR-FE is a great choice for those who want a balance of efficiency, performance, and reliability in a modern Toyota engine. The Toyota UZ engine family is a gasoline [1] fueled 32-valve quad-camshaft V8 piston engine series used in Toyota's luxury offerings and sport utility vehicles. After the rewiring that part, my motor would not start. The principal benefits of DOHC engines are lower reciprocating mass in the valve train. Jun 21, 2021 · How reliable is Toyota's 1ZZ-FE engine? Learn about 3 common problems including oil consumption, timing chain oil leaks, and ECM issues. With the very large 100 series, a V-8 is a more appropriately sized powerplant, especially for America's go fast customers. With its V8 configuration and advanced features, it has become a favorite among car enthusiasts and professionals. In contrast to the 1UZ and 3UZ, 2UZ-FE engine used cast iron cylinder block. BUT - I'm having trouble with the cooling. Have a chat with Rick @ 4wdacc, after him telling me what to look for on my 2JZ it was alot easier, tested each of the sensors etc using the factory recommendations. What kind of oil does a LS400 take? 5W-30 (All TEMPS) - SAE 5W-30 is preferred. Pretty much all of them except the N54 lack any major issues, although older models certainly do have issues with engine peripherals like water pumps, gaskets and cooling hoses. Seems to look very close to the 3uz in design? Very curious about sizing as I know the 1uz-vvti will fit in the car I have in mind, but not sure how easily the 3uz will. It has a strong following in the automotive community and can be a good choice for those who are looking for a powerful and durable engine for their vehicle. It's generally seen as a reliable engine, but there are a couple of things to look out for - one is the exhaust manifold which can crack and make a ticking noise. I would say properly setup can be reliable at 1000 hp. These engines are not just about raw power; they represent a blend of engineering excellence and practical application. Conclusion: The Best Toyota Engine? Choosing the most reliable Toyota engine depends on the intended use: For performance enthusiasts, the 2JZ-GTE is unbeatable. [3] Toyota's UZ engine https://amzn. being have issues with my 1uz starting and idling have so far spent 2 full days on this problem so far google has been searched non stop. 360,000 is a scary number for me and I would like to see some opinions from people who drive LS400's. 4 quarts (with filter). I under weight is an issue. I'm someone coming from e46s so I'm somewhat familiar with bmws. I've already bought a 1994 Lexus LS400 with 140k miles for the 1UZ engine and was planning to install it in a southern T100, but the Tundra came up first lol. Is this a proven safe level for long term reliability for the skinny rod 3UZ? - I am willing to give up some power for reliability Torque in the heavy, 6 speed auto car is more important to We I learned is that the 1UZ and 3UZ have the same aluminum block except the sleeves. I'm looking at a 2004 ML500 with the M113 engine with < 100K miles. The trans is setup for a donut flange driveshaft and not a slip yoke unless you find a Crown trans. Reliability need to be define. From turbo kits to 1uz superchargers to Toyota Previa minivan engine swaps, we’re here to help! Our specialized Lexus-Toyota V8 Forum is dedicated to the Lexus-Toyota V8 UZFE family (1UZFE, 2UZFE, 3UZFE) Performance Engines and includes the 2006-2007 V8 powered 4. Power handling and longevity are two different areas of reliability as well. to/44fOuWz - Intake Gaskets for 1UZ-FE The Toyota 4. Sep 24, 2006 · Article from Wikipedia This article or section does not cite its references or sources. With its V8 configuration and impressive specifications, it has become a favorite among car enthusiasts and luxury car manufacturers. Reply reply [deleted] • Comment deleted by user Reply reply bigoptionwhale777 • Reply reply more replies more replies More replies chucchinchilla • I'm just an enthusiast who loves these cars, obsesses over keeping them on the road in good condition and does a lot of DIY. When changed with the 3UZ-FE engine, it was a 4. 0 engine The ancestor of the Toyota UZ family (which later included 2UZ and 3UZ), the 1UZ engine, appeared in 1989 and was intended for the top models of Toyota and Lexus. Feb 7, 2005 · 2UZFE is a casted Iron block and the 1 & 3 UZFE are aluminum. Now the question is having small ISS weaken the block? ISS means less support for the sleeves and this is very essential during high hp application. Mar 4, 2010 · I think many of us here, as well as from other 1UZ forums have always thought that all the non-VVTi UZ engines were non-interference, although, now that I've searched for it in Toyota's NCF publications, it's actually not mentioned one way or the other. Apr 6, 2020 · And the 1UZ engine harness is not the most simple thing, the wire bundle is girthy. 3L Engine design and features, its the most common problems and relaibility. 7L Engine? Is it good or bad? Read about Toyota 2UZ-FE 4. I have had the ECU out and it has the following numbers on it - 89661-30430 Sep 1, 2004 · Hey guys how are you going, i have been dreaming about doing an engine conversion for as long as i can remember, theres just something special about being different :P . BUT the Crown stuff is hard to find. Feb 3, 2016 · Toyota 3UZ-FE engine specs, reliability and recommended engine oil. I had always had a mild interest in the 100 series, but I never felt Jul 23, 2025 · Forums for Lexus-Toyota V8 UZFE owners & enthusiasts (1UZ, 2UZ, 3UZ) including engine/trans swap, turbo kits, superchargers, etc. The engine starts and 4 days ago · The Toyota 1UZ-FE is a 4. 89K subscribers in the regularcarreviews community. Asking $3150. Using the incorrect type of oil can cause engine performance problems and trigger the check engine light. The 1UZ-FE engine has 8 cylinders in a V-arrangement at a bank angle of 90° The 1UZ-FE features aluminum cylinder block with a five-bearings crankshaft and two aluminum heads with two I recently started looking at a ‘93 SC300 with 100,000 miles and a ‘95 SC400 with 80,000 miles and was hoping for some info on common issues, maintenance costs or things I should know about them before going any further in my search. it will not start unless ya foot is on the gas pedal and once ya have got it started The ls400 has the 1 uz as well as the sc400 the engine itself is very reliable if maintained Matt farahs million mile Lexus has the 1uz Toyota 1UZ-FE 4. Jul 31, 2006 · Wondering where everyone thinks the 2UZ falls when reflecting on the storied history of Toyota engines. Nov 23, 2017 · The 1UZ will hold a lot of power ( 6 bolt mains with forged internals ) from what I've read but pretty much the automatic trans is a major hitch for a short car like the T bucket. Both of them gained reputation the one of the most reliable Toyota engines with huge motor potential. i reckon if i was careful i could improve it to 11 litres per100km Brief Overview: Briefly introduce the 1UZ engine, its common applications (e. How to increase the power of the 3UZ-FE: supercharger, turbo, twin turbo, etc. On the Jan 5, 2010 · 8000rpm doubt it would last that long but you hear on people running 9000-10,000rpm in NZ and AUS and they are considered cheap engines so just replace them all the time. Emphasize the importance of accurate diagnosis and proper sensor selection for 1UZ owners. 0L Engine Specs, Problems, Reliability. Oct 14, 2012 · the 1uz for strength, cheapness of the engine and the awesome torque and sound. , Lexus, Toyota models), and the critical role of sensors in maintaining optimal engine function. During its production, Toyota tinkered with a couple of variants of the 3UZ-FE motor for their race engine platform. Aug 18, 2023 · Hello all, I have a 1st gen 1uz I rebuilt that I recently swapped into my 1992 Toyota pickup and I am having some issues now keeping the engine running and not holding an idle. Even at the same age and mileage, they don't seem to have as many common oil leaks and don't seem to need top end rebuilds at nearly the same rate as the old 1FZ. The Toyota 1UZ engine is a 4. 0 Toyota V-6. 4 days ago · Discover common Toyota RAV4 Hybrid engine problems, their causes, owner experiences, and important recalls and TSBs. to/41NUNil - Rod Bearing Set fo 1UZ-FE https://amzn. Mar 6, 2018 · Every picture posted tells me the 1UZ is the superior option. In this article, we’ll compare the two engines in terms of power, reliability, aftermarket support, and more. 3L Engine? Is it good or bad? Read about Toyota 3UZ-FE 4. Please discuss this issue on the talk page, or replace this Sep 6, 2017 · There are two variations of the Toyota V8 powerplant which are common for engine swaps — the early 1UZ-FE four-litre unit, which can be recognized by its twin-distributor ignition system, and the later 1UZ-FE VVTi 4. However, like any complex system, these engines can encounter a range of issues that may concern drivers. This Supercharger could be fitted to any other engine if adaptored. Jun 1, 2025 · When it comes to V8 engines, Toyota has carved out a reputation for reliability and durability that stands the test of time. If you would like to know more, or just get some friendly advice on Tuning your UZ engine please join us in our friendly forum where you can discuss tuning options in more detail with our UZ owners. Complete specs, features, oil, common problems, longevity. sniper Oct 4, 2010 Classifieds Replies 5 Views 2K Oct 25, 2010 Nov 12, 2006 · Who on this forum has a 1ZZ-FE engine with 115k miles or greater? Other than higher oil consumption any other issues to report? Our '98 as 132k miles and has just the oil consumption issue others have reported Nov 17, 2024 · Reliability, construction and repair of Toyota 1UZ 4. 1jz is easier and cheaper to tune, still and auto but easier to convert to manual than the 1uz, but still expensive if you use the r154. When done right, this engine will outlast most factory OEM engines in any rough off road situation, and take all the abuse you can throw at it. We'll also touch upon ethical considerations Apr 14, 2024 · The Lexus V8 1UZ-FE engine is a remarkable piece of engineering that combines power, reliability, and smooth operation. Slowly this motor began to displace the big inline six 1FZ. I started it turned on the heaters A/C and ran it. . Jul 9, 2024 · Discover the impressive specs of the Lexus 1UZ engine, its configuration, oil requirements, and service intervals for optimal performance and reliability. 6 litre V8 taken from the Toyota Majesta, seems like it is a 1UR-FSE engine. Either way, standard or otherwise, I would personally go for the 1UZ. Oct 10, 2023 · The 3UZ-FE does have thinner cylinder walls, which poses problems for boosters, which is another reason that the 1UZ-FE is the preferred engine of choice for the classic car enthusiast. 2-liter V8 powerhouse produced by Toyota, celebrated for its high performance, reliability, and advanced technology. Special section for Supra V8 Swap and Project Dairy. oin yjrjbcf ddzp zoeaqqq icpq vnguk nfdyv bmcd erpy gdej