Reviews on Gm Ecotec 24l Dohc 4 Cylinder
GM 2.4 Ecotec Engine Problems
The GM two.4L Ecotec engine fabricated its debut in 2006 and remained through 2019 in the Polaris Slingshot. 2.4 Ecotec engines are found in many Chevy, Buick, Saturn, GM, and Pontiac models. The engine offers a respectable 164-182 horsepower given its pocket-sized NA design. It's also an efficient engine that offers good fuel economy. Yet, no engine is perfect and there aren't whatsoever exceptions here. In this article, we discuss a few common problems with the GM two.4 Ecotec engines likewise as overall reliability.
What Cars Use the 2.4L Ecotec?
Again, this engine is in quite a few different Chevy, Buick, Saturn, Pontiac, and GM models. The ii.four Ecotec likewise went through some updates during its decade plus run. Each two.4L engine has a unique engine code inside the Ecotec family. Here's a breakup of some models that use the engine:
*Bear with usa through this long list. It's important to differentiate these variants of the 2.4L inline-4 engine. Some mutual problems may affect certain variants more than than others, and we'll clarify throughout the post where necessary.
GM 2.4 LE5 Engine
- 2006-2008 Chevy Cobalt SS / Sport
- 2006-2008 Chevy HHR
- 2008-2012 Chevy Malibu
- 2006-2008 Pontiac G5
- 2006-2009 Pontiac G6
- 2006-2009 Pontiac Solstice
- 2006-2007 Saturn Ion
- 2006-2009 Saturn Sky
- 2008-2009 Saturn Aura
- 2008-2009 Saturn Vue
2.4L Ecotec LAT
The 2.4 LAT version of the GM Ecotec is the same as the previous LE5 engine. However, GM uses LAT as the designation for use in mid hybrid vehicles. Information technology's in the following models:
- 2007-2009 Saturn Aura Dark-green Line Hybrid
- 2007-2008 Saturn Vue Green Line Hybrid
- 2008-2009 Chevy Malibu Hybrid
GM 2.4L LE9
LE9 engines are but an E85 compatible version of the original LE5 Ecotec engines. They're in the following models:
- 2009-2011 Chevy HHR
- 2010-2012 Chevy Malibu
- 2014-2019 Polaris Slingshot
Ecotec LAF Engine
LAF 2.4L Ecotec engines made their debut in 2010. It's the aforementioned base design, however GM switched to direct fuel injection. They also increased compression and re-designed the pistons. The 2.four Ecotec LAF is in these models:
- 2010-2011 Chevy Equinox
- 2011-2014 Chevy Orlando
- 2011 Chevy Captiva
- 2010-2011 GMC Terrain
- 2010-2011 Buick Lacrosse
- 2011 Buick Majestic
two.4L Ecotec LEA
LEA Ecotec engines are the same base design as the previous LAF engines. The LEA ii.4L shares the higher compression and other updates. Nonetheless, it's an E85 compatible variant that's in the following cars:
- 2012-2017 Chevy Captiva Sport
- 2012-2017 Chevy Equinox
- 2013-2017 Buick Regal
- 2012-2017 Buick Verano
- 2012-2017 GMC Terrain
GM 2.4 LUK Engine
Alright – terminal one. 2.4L LUK variants are the same equally the previous LEA engines, just the LUK adds in eAssist mild-hybrid systems.
- 2012-2016 Buick Lacrosse
- 2012-2017 Buick Regal
- 2013-2014 Chevy Malibu ECO
- 2014 Chevy Impala
4 Common 2.4 Ecotec Engine Problems
Deplorable for the exhaustive listing of engines. Information technology's important to differentiate and then we tin talk over a few problems that touch certain variants more others. Anyways, some common issues with the GM/Chevy ii.4L Ecotec engine includes:
- Timing chain
- Oil consumption
- Carbon build-up
- Oil leaks
We'll discuss these two.4L Ecotec problems in-depth throughout this commodity. At the stop nosotros'll also wrap things up with overall thoughts on 2.4L reliability. It's a skillful time to discuss a few important notes prior to jumping in. Nosotros're classifying these as the most common problems. That doesn't necessarily mean they're truly common failures that impact a large number of engines. Rather, when bug exercise occur these are a few common areas on the GM two.iv Ecotec.
Additionally, some variants are more or less decumbent to these issues. We'll endeavour to clarify where necessary. Another quick note – some GM 2.4L engines are 10-15+ years old. As engines age they may go prone to bug more often. Newer variants of the two.4L Ecotec are probable to be more reliable in the short-term simply due to age. That said, let's jump in and discuss the above GM two.4 Ecotec engine problems.
ane) two.iv Ecotec Timing Concatenation Failures
Timing chains are without question one of the most talked about bug with the GM two.4 Ecotec engine. Keep in heed – the internet has a trend to blow things out of proportion. That's particularly truthful when it comes to potentially plush issues. Timing chain failures are however a adequately common upshot, though. It primarily affects earlier engines as GM somewhen updated some parts. Chevrolet Equinox and Malibu models seem to be the most affected.
The main problem with two.4L Ecotec timing bondage are the tensioners and upper bolt. When the tensioner fails it allows the timing concatenation to develop slack. In turn, the timing concatenation can spring a few teeth. To brand matters worse, the 2.4 Ecotec is an interference engine. This means there is overlap in the travel of the valves and pistons.
When timing jumps information technology tin cause the valves to really contact the pistons. If this occurs information technology'southward likely some valves will bend or interruption leading to costly repairs. It'south a good idea to check the GM ii.4L Ecotec timing chain for any marks/scuffing or slack. This will give yous a good thought equally to the health of the timing concatenation parts. Bug can occur sooner, but definitely go on an heart out above the 100,000 mile marker. Beneath is a quick video on the trouble.
2.4L Ecotec Timing Concatenation Symptoms
A few symptoms of timing chain problems on the GM 2.four Ecotec engine include:
- Engine fault codes
- Rattling sounds
- Misfires
- Poor functioning
Rattling sounds from the engine are unremarkably 1 of the get-go symptoms. As the chain develops slack you'll hear it rattling around at idle. If timing actually jumps some y'all'll start to notice mistake codes, misfires, and poor overall operation. In extreme cases where timing jumps too far off track you'll find even more symptoms. The ii.4L Ecotec valves and pistons could contact each other leading to further damage.
GM 2.4 Inline-four Timing Chain Replacement
Again, it's a adept idea to bank check the timing chain every so frequently. Popping off the valve encompass is pretty quick and easy, and you tin then inspect the concatenation. This may aid you catch whatever ii.4 Ecotec timing chain issues early plenty to prevent farther harm.
A timing chain kit usually runs somewhere in the $150-300 ballpark, so it's non terribly expensive for the DIY crowd. However, it is a lengthy repair so labor costs tin quickly add some other $500-800 to the pecker.
In the worst case you might finish upwards with broken ii.4L valves, which will make for an expensive repair. Depending on the extent it could easily add up to a $1,500+ job between replacing valves and the timing chain.
two) GM ii.4L Ecotec Loftier Oil Consumption
As with timing chain issues, high oil consumption seems to primarily affect Chevy Equinox and Malibu models. However, this is a potential issue on many unlike years and models. It's a common and troubling enough event that high oil consumption led to some lawsuits. Fortunately, GM did offer some extended warranties and fixes to remedy the problems.
Anyways, ii.4 Ecotec engines are prone to high oil consumption due to issues with the piston rings. Excess oil from piston oil spray nozzles is able to make its mode past the piston rings and into the combustion bedroom. It's and so burned off, which isn't a huge outcome by itself.
Notwithstanding, some oil consumption cases are excessive and leads to owners non topping off on oil often enough. Piston ring clothing may also cause the ii.4L Ecotec to have serious problems in the long-term. If the rings article of clothing and permit likewise big a gap you may also brainstorm losing pinch.
Anyways, today this is hopefully a not-issue for a vast bulk of 2.4 Ecotec engines on the road. Nigh cases of backlog oil consumption were caught and repaired under warranty. Some engines may accept slipped through the cracks, though.
GM 2.4 Oil Consumption Ready
Some oil consumption is natural in all engines. If yous're noticing excess consumption (1+ quarts every 1,000 to ii,000 miles) then it'due south something to expect further into. The problem could be with the piston rings, which is not a cheap fix.
Fortunately, GM is aware of these problems with the ii.4L Ecotec engine. If the ultimate diagnosis is due to piston ring wear you may be able to work with GM to take the failure resolved.
3) 2.4 Ecotec Carbon Build-Up Issues
Carbon build-up on the 2.4 Ecotec is a problem that mostly affects the LAF, LEA, and LUK engines. All engines naturally produce some oil blow-by that makes its way through the intake tract. Information technology tin and so stick to intake valves and ports and course carbon deposits.
Early GM 2.4L Ecotec engines utilise port fuel injection. Fuel is sprayed into the intake ports, which helps launder away whatever oil deposits. However, the afterwards straight injection 2.4 Ecotec engines don't have that do good. Fuel is sprayed straight into the cylinder thereby allowing carbon deposits to form on the back of intake valves.
It's commonly not a major problem, and some GM ii.4 Ecotec engines will go their whole lives without any intake valve cleaning. Though, in some cases carbon build-up can cause annoying symptoms and drivability issues. It'due south too possible for chunks of carbon to break off and cause harm to valves and other parts – this is extremely unlikely, though.
Look for excess carbon build-up to go a potential event around 80,000 to 120,000 miles. Once again, it's non an urgent problem but the engine may run a lot worse if the carbon deposits are bad plenty.
GM 2.4L Ecotec Carbon Build-up Symptoms
Some symptoms of backlog carbon build-up on the GM ii.4 Ecotec engine are:
- Misfires
- Crude idle
- Stuttering / hesitation
- Power loss
As carbon build-up on the 2.4L valves it restricts air-catamenia into the engine. It tin also crusade uneven air-flow to unlike cylinders, so you'll kickoff to get misfires and a rough idle. You might also notice stuttering or hesitation while accelerating. Finally, power loss occurs only it tin can exist very hard to notice. Carbon deposits form over fourth dimension meaning power loss is gradual.
Chevy 2.4 Carbon Build-Up "Fix"
Outset off, at that place are a few ways to help limit carbon build-up. You can try various products in the intake tract every oil change and install an oil catch can. However, walnut diggings remains the virtually effective style of getting rid of carbon once its in that location.
Walnut blasting requires walnut media shells and shop vac. The media shells are cheap, but labor tin can be pretty expensive at a shop. The intake manifold must come up off to access the valves, and and so the cleaning process takes an hour or two. Expect to pay about $400-600 in labor to have the ii.4 Ecotec valves walnut blasted.
iv) GM 2.4L Engine Oil Leaks
Alright, we'll be fairly quick on this section. Nearly all engines are prone to oil leaks, and most volition run into one or two over the form of their lives. Things like valve cover gaskets, oil pan gaskets, principal seals, etc are decumbent to cracking with age and mileage. Oil leaks on the 2.iv Ecotec don't appear to be due to any major design flaws or problems.
The two.4L Ecotec can run into oil leaks at any point, but it'south non actually common until 10+ years and 100,000+ miles. As such, we don't really retrieve its fair to chalk it up as a true problem. It'south something to be aware of, though. This is particularly true for those looking to buy or own an older, higher mileage 2.4L Ecotec GM engine.
Chevy/GM 2.4 Oil Leak Ready
Over again, look for some mutual areas of oil leaks to include the valve cover gasket, oil pan gasket, and main seals. These are all very cheap parts for the GM 2.4L engine. Still, labor on oil leaks can add up to quite a bit.
Valve covers are simple repairs that should only run $200-400. However, master seals and oil pan leaks tin can add up to a lot in labor. Fortunately, it's all cheap for the DIY crowd willing to spend an afternoon in the garage.
ii.4L Ecotec Reliability
Is the GM 2.4L Ecotec engine reliable? Nosotros'll requite this engine average remarks for reliability. It'due south certainly not the almost reliable engine out there, but it's also far from the worst. 2010-2013 Chevrolet Equinox models seem to exist the nearly susceptible to running into timing chain and high oil consumption problems.
Otherwise, later models are prone to carbon build-upwardly. Nonetheless, it'southward simply a downside to directly injection so we don't consider it a true issue. Oil leaks also probably don't qualify as a true trouble on the ii.4 Ecotec. Information technology's generally historic period and mileage related rather than any specific design flaws.
Some reliability simply comes downward to how well y'all maintain the 2.4 Ecotec, and some luck of the draw. Use high quality oils, change fluids on time, and repair problems when they popular upwardly. Practise this and chances are you lot'll take a good, reliable experience with the ii.4L GM engine.
GM 2.4 Ecotec Engine Problems Summary
Chevy/GM ii.4L Ecotec engines offer a practiced balance of performance and efficiency. The power definitely isn't impressive by modern standards, but it's plenty for smaller vehicles to get from A to B and then some. Regardless, no engine is perfect and that applies to the GM 2.4 Ecotec engine.
Earlier models, especially the Chevy Equinox and Malibu, were prone to some serious flaws with the timing chains and piston rings. Direct injected models with the 2.4 LAF, LEA, and LUK engines are prone to carbon build-upwardly. It's simply a trade-off to direct injection, which offers many other benefits. Lastly, every bit the 2.4 Ecotec engines age they're prone to occasional oil leaks – every bit with just about whatever engine.
ii.four Ecotec engines certainly aren't the most reliable engines around, but they're nevertheless pretty solid. Maintain the 2.4L engine well and hope you have a bit of luck on your side. These engines can hold upwards to 200,000+ miles with proper maintenance and a niggling good fortune.
What'south your feel with the GM 2.4L Ecotec? Are you because i?
Drop a comment and permit usa know!
Source: https://tuningpro.co/the-4-most-common-gm-2-4l-ecotec-engine-problems/
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