hhr ss ticking time bomb??
People have problems that dont take care of the smallest things... wait 60 seconds when you start the car wait a little before killing it.. change your oil on time and please put premium in the car.. i took my car off the lot with 34 miles now ihave 50K and no engine problems at all... my car has been tuned on a pretty agressive tune for over 30K now and it gets beat to **** daily... dunno what to tell you guys
you and about 6 others come to mind. this is what i was talking about. by no means am i trying to scare people or give our cars a bad rep. i take care of both of mine and i do from time to time put my foot in my 5 speed. it's been tuned since the second month i owned it. no problems-knock on wood.
OK So far
mine's up to 82k and my only issue is my magical disappearing LF TPM. I think it might need a new clutch in the not too distant future. I haven't shifted a new one, but it sure does seem like a....finicky shifter
I have 40K on mine and quite alot of those miles were a 1/4 mile at a time. I beat on it daily as my daily driver. Add the meth and 27lb psi most of the time, it runs great. The block and head design is built to withstand 500 hp. And to my knowledge ZZP Performance is the only company going over that in their Cobalt.
This is a little over blown. yes some people have had issues. The guys with 2.4 and 2.2 also have had engine issues. The tech at the dealer I know said they have had a few of all size eco's with issues but nothing any greater than any other engine.
The SS 2.0 has more people monkeying with it. Not all tunes are well done or safe. While many have done a good job tuning an engine there are a good percentage that are not to the same level. With this engine if you don't get it right it is not forgiving and the closer the edge you get the less room for error.
I work in the performance aftermarket and see tuning mistakes and engine mods kill a lot of good engines and drivelines as many peopel even some pro's screw up. When they do anymore it is expensive.
If I had a dollar for ever screwed up clutch and fuel system on a Mustang I would be rich now. Just because you may know something does not mean it will work the same on all cars. This is what kills a lot of todays technology driven cars today. We sell tuners that warn if you screw up it will be catastophic so know what you are doing before you start or seek professional help.
I see alot of Eco turbo's and for the most they are no more or less prone to issues than most other cars if left stock.
The SS 2.0 has more people monkeying with it. Not all tunes are well done or safe. While many have done a good job tuning an engine there are a good percentage that are not to the same level. With this engine if you don't get it right it is not forgiving and the closer the edge you get the less room for error.
I work in the performance aftermarket and see tuning mistakes and engine mods kill a lot of good engines and drivelines as many peopel even some pro's screw up. When they do anymore it is expensive.
If I had a dollar for ever screwed up clutch and fuel system on a Mustang I would be rich now. Just because you may know something does not mean it will work the same on all cars. This is what kills a lot of todays technology driven cars today. We sell tuners that warn if you screw up it will be catastophic so know what you are doing before you start or seek professional help.
I see alot of Eco turbo's and for the most they are no more or less prone to issues than most other cars if left stock.
This is a little over blown. yes some people have had issues. The guys with 2.4 and 2.2 also have had engine issues. The tech at the dealer I know said they have had a few of all size eco's with issues but nothing any greater than any other engine.
The SS 2.0 has more people monkeying with it. Not all tunes are well done or safe. While many have done a good job tuning an engine there are a good percentage that are not to the same level. With this engine if you don't get it right it is not forgiving and the closer the edge you get the less room for error.
I work in the performance aftermarket and see tuning mistakes and engine mods kill a lot of good engines and drivelines as many peopel even some pro's screw up. When they do anymore it is expensive.
If I had a dollar for ever screwed up clutch and fuel system on a Mustang I would be rich now. Just because you may know something does not mean it will work the same on all cars. This is what kills a lot of todays technology driven cars today. We sell tuners that warn if you screw up it will be catastophic so know what you are doing before you start or seek professional help.
I see alot of Eco turbo's and for the most they are no more or less prone to issues than most other cars if left stock.
The SS 2.0 has more people monkeying with it. Not all tunes are well done or safe. While many have done a good job tuning an engine there are a good percentage that are not to the same level. With this engine if you don't get it right it is not forgiving and the closer the edge you get the less room for error.
I work in the performance aftermarket and see tuning mistakes and engine mods kill a lot of good engines and drivelines as many peopel even some pro's screw up. When they do anymore it is expensive.
If I had a dollar for ever screwed up clutch and fuel system on a Mustang I would be rich now. Just because you may know something does not mean it will work the same on all cars. This is what kills a lot of todays technology driven cars today. We sell tuners that warn if you screw up it will be catastophic so know what you are doing before you start or seek professional help.
I see alot of Eco turbo's and for the most they are no more or less prone to issues than most other cars if left stock.
LewiSS
If you down shift from 4-3 and hit 1 , You should'nt be driving a stick. IMO
I'll hit 75000 miles in the next week , Other than the B.S. Codes that pop up due to the worlds most touchy computer(and my intake). This engine is almost bullet proof. This car has been beatin more than all the cars i've owned in 31 years of driving. It is as soild as the day i bought it , engine wise.

If you down shift from 4-3 and hit 1 , You should'nt be driving a stick. IMO
I'll hit 75000 miles in the next week , Other than the B.S. Codes that pop up due to the worlds most touchy computer(and my intake). This engine is almost bullet proof. This car has been beatin more than all the cars i've owned in 31 years of driving. It is as soild as the day i bought it , engine wise.

Most comments on this thread blame mods, or owners not taking care of there car for engine problems. I do all my own oil changes with only Mobil One 5w-30, use only premium fuel, I have no mods, etc. My car has 40k miles and is currently at the dealer with all four camshaft end bearings bad with particles of said bearings all through my engine. Why? Sometimes S**T happens.
BTW GM is covering all repairs (most likely new engine) and rental car under powertrain warrenty, Thank You GM for doing the right thing.
My point on the missed downshift is that such a thing can happen, and it isn't the fault of GM. I saw a Cobalt with an aftermarket turbo that had thrown a rod out the block while it was "slowing down for a stop sign." Right. And what gear was that you downshifted into?
Same with ANY aftermarket tune - GM spent millions of dollars perfecting the programming in the stock system. True, there is more performance to be had from the stock motor. But at what expense? Even GM's own Stage 1 has proven to be problematic in a lot of ways.
I'm not convinced that a stock SS is a grenade with the pin pulled if it is maintained properly (either by owner or a good shop) and driven properly (and, no, not like a 77 year old grandmother, just not abused or overreved which is only possible with a downshift, and then only on a manual, since it has a rev limiter on acceleration and the auto won't engage a downshift if it will result in an overrev condition).
Same with ANY aftermarket tune - GM spent millions of dollars perfecting the programming in the stock system. True, there is more performance to be had from the stock motor. But at what expense? Even GM's own Stage 1 has proven to be problematic in a lot of ways.
I'm not convinced that a stock SS is a grenade with the pin pulled if it is maintained properly (either by owner or a good shop) and driven properly (and, no, not like a 77 year old grandmother, just not abused or overreved which is only possible with a downshift, and then only on a manual, since it has a rev limiter on acceleration and the auto won't engage a downshift if it will result in an overrev condition).




