2017 ATS 2.0 L (new purchase question)
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2014 ATS 3.6 Premium RWD, 2016 Corvette Z06, 2018 GMC Sierra Denali 2500HD Diesel
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Cadillac provides a 6 year/70K powertrain warranty but that is void if the engine has been significantly modified and that includes reprogramming the ECM which is often needed when the intake is significantly modified. Make sure whether the warranty is valid if that is of concern to you.
Rodger
Rodger
This is great information and thank you for bringing that to my attention. With those 2 mods it could hold me from the factory warranty. So that is something to think about. . I had a independent mechanic look at it and gave it a go. I am stepping in a new world cause I had a Tahoe for 20 years. Just from my heavy research I seen the filter and throttle body but that is as far as I could get.
Verify that the CUE system works.
Car comes with Run Flat tires and no spare. Verify the tires, RF or not, so you are aware.
Car comes with Run Flat tires and no spare. Verify the tires, RF or not, so you are aware.
It looks like it has a catch can on it as well, which is typically good because it keeps the oil out of the Turbo. One thing to note about the RF (Run Flats), not a deal breaker at all unless you plan to take long trips and don't want to be caught on the highway without a spare tire. As long as they have the proper size times on the car it should be fine, RF are not as soft and quiet as regular tires . . . i don't have RF's i have michelin that are non-RF.
Also check to see if the rear diff has been serviced, this typically goes bad on ATS and CTS - mine went out at 50k and its 3k cost with no warranty. The dealer should be able to tell you if it's been serviced.
Also check to see if the rear diff has been serviced, this typically goes bad on ATS and CTS - mine went out at 50k and its 3k cost with no warranty. The dealer should be able to tell you if it's been serviced.
Great catch Maven about the Turbo heat shield, i agree with your assessment . . .
Depending on when it was originally sold you may or may not have part of the factory warranty remaining (unlikely much left but dealer could tell you). Engine modifications don't void the complete warranty so for example if the CUE fails they don't deny the repair because you have an aftermarket air intake. The mod has to be at least related to the failure.
2014 ATS 3.6 Premium RWD, 2016 Corvette Z06, 2018 GMC Sierra Denali 2500HD Diesel
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2,990 Posts
Even if taken back to stock, depending upon the generation of ECM used for that engine it will retain fingerprints from being flashed. Any major in-warranty engine repair will require the dealer to submit ECM data before GM will approve the work. Unless you want a modified car that has modifications you were planning to install, I would stay well away from any significantly modified vehicle-especially one that should still be in powertrain warranty.
Rodger
Rodger
Wow I am glad I got on this forum. All of this information is great. The car is at a Honda dealership so there is no way it would be able to put back on original parts. As for the rear diff , I looked at the carfax and it does not have anything about any marjor service. Just the typical service check and oil change stuff.
again I can’t thank everyone enough for all this great info
again I can’t thank everyone enough for all this great info
Agree with the above. Though the PCV side catch can is the one they should have gone with as it catches far more oil, but at least they did something since they removed the factory intake with the oil baffle in it.
My thing is who knows if this person did things properly, the LTG is a good engine but it is somewhat of a temperamental/fragile platform so when doing any serious power modification things absolutely must be done right. For all we know he blew piston(s), put new ones in, and dumped the car. OR...it may be fine. But I wouldn't buy someone else's project, especially since there are so many ATS's out there and they are relatively inexpensive. Unless this one is a manual or something that is hard to find, I'd walk away and find another.
If you do buy it, that intake will cause a CEL to be staring you in the face. Generally unless you do a silicon tube + drop-in high flow filter, you need to tune for an intake to eliminate the CEL. The reason this happens is the MAF on these cars is very picky haha.
My thing is who knows if this person did things properly, the LTG is a good engine but it is somewhat of a temperamental/fragile platform so when doing any serious power modification things absolutely must be done right. For all we know he blew piston(s), put new ones in, and dumped the car. OR...it may be fine. But I wouldn't buy someone else's project, especially since there are so many ATS's out there and they are relatively inexpensive. Unless this one is a manual or something that is hard to find, I'd walk away and find another.
If you do buy it, that intake will cause a CEL to be staring you in the face. Generally unless you do a silicon tube + drop-in high flow filter, you need to tune for an intake to eliminate the CEL. The reason this happens is the MAF on these cars is very picky haha.
Btw CUE issues have widely been recognized by the aftermarket and there are cheap and easy solutions to fixing it, so I wouldn't let that scare you. With $150 or less and a couple hours of your time you can replace the digitizer (screen) which is what typically fails, and if you use the CUEscreens unit that eliminated the gel layer you should never have a CUE issue again.
It doesn't have a current warranty block or branded title.
It has the CUE replaced once already in 7/2018.
It's never had an 8spd fluid flush or any trans work other than a cooler line replacement at 19k miles.
Bumper to bumper til 4/26/21 50,065miles
You'd be at least the 3rd owner.
It has the CUE replaced once already in 7/2018.
It's never had an 8spd fluid flush or any trans work other than a cooler line replacement at 19k miles.
Bumper to bumper til 4/26/21 50,065miles
You'd be at least the 3rd owner.
2014 ATS 3.6 Premium RWD, 2016 Corvette Z06, 2018 GMC Sierra Denali 2500HD Diesel
Joined
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2,990 Posts
Maven,
Thanks for checking that for the thread starter. I would still pass on it because the warranty block won't happen with a "tuned" ECM until the snapshot data is checked back at corporate although I imagine most dealership service departments would flag and block it just based upon the obvious modifications if it came in with internal engine issues.
GM started putting a lot more emphasis on catching tunes in the mid 2000 era after warranty costs increased rapidly with the popularity of "tuning" light truck diesels and the lessons learned there were carried over to the gas engine side also. When GM (and other manufacturers) release a revised engine with significantly increased power ratings, it isn't just the tune but also internal parts, often the block, and also the support systems (cooling etc.) that are all upgraded. Making more power is pretty easy, making power that is reliable long term is far more involved.
Rodger
Thanks for checking that for the thread starter. I would still pass on it because the warranty block won't happen with a "tuned" ECM until the snapshot data is checked back at corporate although I imagine most dealership service departments would flag and block it just based upon the obvious modifications if it came in with internal engine issues.
GM started putting a lot more emphasis on catching tunes in the mid 2000 era after warranty costs increased rapidly with the popularity of "tuning" light truck diesels and the lessons learned there were carried over to the gas engine side also. When GM (and other manufacturers) release a revised engine with significantly increased power ratings, it isn't just the tune but also internal parts, often the block, and also the support systems (cooling etc.) that are all upgraded. Making more power is pretty easy, making power that is reliable long term is far more involved.
Rodger
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