[Z OH 6]

Originally Posted by BMLMZ

Also the oil pump failure is GOING TO happen on any 2017/18 car without the revised pump. Here's Matt from RPM to explain.

https://youtu.be/WSlLGK8oRz4?si=hnmXEiCTEgRJJB-3&t=365

I tend to agree here. It's not "if" but "when".

[gpskinzhut]

Same with my ‘17. Reeder Chevy in Knoxville saw it twice for low pressure, and ‘shockingly’ they couldn’t reproduce the sub 20psi I was seeing after hard acceleration. Wouldn’t do anything without it showing a CEL. “Just go drive your car.” I ended up footing the bill for a Katech swap through a private shop. Like hell I was waiting for a blown engine before fighting their bullshit some more. Blew me off on a few things on my SS too (loose oil pan bolts for example).

[scooter k]

You've got to push a little harder with the dealer and GM customer assistance. They have a policy calculator and should pay way more than that. I've seen things get taken care of in these cases.

[george]

Can you call another dealer and see if they would fix it under warranty ?

[nighttowl]

Originally Posted by Z OH 6

The LT4 is a VERY reliable platform other than the 2017-2018 oil pumps. Some people have even managed to get more than 36K miles out of thiers without needing a replacement yet.

I can't tell if this is sarcasm or not.
No one should have to swap out an oil pump before thier spark plugs ever.

[Vtor_ZL1]

I have had 2 oil pump failures, same year car as OP. Both covered by Chevy, engine warranty extended to 7 years or 70K miles if I recall correctly.


It's been "good" since second pump was put on. Both instances caught seconds from DIC error message. 2nd time i noticed oil pressure bouncing all over and since i was very close to dealer... just dropped it off.


I think first one failed at like 22,000 miles, the second oil failed at 29,000 miles. I think I am up to 33,000 miles currently. Disappointing that track weapon can't survive a drive to the office!

[Kamero6]

Originally Posted by nighttowl

Anyone know someone who had dealt with chevrolet?
I'm wondering do I have a case?
I have never had to do this before.


In short the car exhibited oil pressure issues and denied the warranty service. 4k miles later the car had what dealership says is engine failure for the same issue.
Dealership estimates $25k repair bill.


Yesterday I received a call from chevy customer service where there is a case on my car.
The car was purchased (18 ZL1 1LE) new from an out of stated dealership and shipped to CA and is now at a the Legacy Chevrolet dealership in Waxahachie, Texas.
I paid over $70k for it, out the door and delivered it cost me $83k.
The car lost all oil pressure a few weeks ago and left me stranded with 18k miles on it.
I pulled over as soon as I could once I seen the alert across the display.

I took it to a dealership, and told them that the car was taken to the dealership previously for low oil pressure in California (Puente Hills Chevrolet).
I was concerned because these cars have known issues with bad oil pumps, particularly the earlier cars, which this is.
There is a technical service bulletin documenting that these cars are known to have defects with the LT4 engine’s oil pump.
https://gm-techlink.com/?p=12041
https://static.nhtsa.gov/odi/tsbs/20...64789-9999.pdf

The dealership had a field technician from Chevrolet come out. They changed the oil and filter and pushed me out the door. I complained but they would not budge. The car had 14k miles on it and was in warranty at the time but I was denied warranty service for the issue.
The powertrain warranty expired last year.

Now the car has 18600 miles on it and no oil pressure. It is stock, including even the air filter.
The dealership rep said that they thought it was the sending unit. They said that when they ran it the car’s oil pressure was very low and varied wildly.
They replaced the sending unit and obviously the result was the same, only now they ran an engine with no oil pressure for who knows how long.
They asked me if they wanted me to pull the pan on it to diagnose it, but said they did not want to do it because the pan was probably full of metal.

They wanted $4k to take it apart, so I called chevy customer service to open a case, citing the previous issue with oil pressure reported and Chevrolets own internal technical service bulletins.
The dealership did not take the car apart, they parked it in the back of the shop but told Chevrolet customer service and me it needs a new engine.
Based on what they told me I can only assume they ran it until it knocked.

Chevrolet customer service said they would pay $5700 toward a new engine and that “at this time” would not buy the vehicle back.


My thoughts are that any modern engine should not have oil pump failures until at least 160-200k miles.
My 4wd truck has 198k miles on it and the only thing ever done to it was change the oil in it.

Below are links to threads in a forum I frequent where others have had oil pump failures on ZL1’s with the LT4 engine.
https://www.camaro6.com/forums/showthread.php?t=592305 – this is me
https://www.camaro6.com/forums/showthread.php?t=532479
https://www.camaro6.com/forums/showt...hlight=failure
https://www.camaro6.com/forums/showt...hlight=failure
https://www.camaro6.com/forums/showt...hlight=failure
https://www.camaro6.com/forums/showt...hlight=failure
https://www.camaro6.com/forums/showt...hlight=failure
https://www.camaro6.com/forums/showt...hlight=failure
https://www.camaro6.com/forums/showt...hlight=failure
https://www.camaro6.com/forums/showt...hlight=failure
https://www.camaro6.com/forums/showt...hlight=failure
https://www.camaro6.com/forums/showt...hlight=failure
https://www.camaro6.com/forums/showt...hlight=failure – this guy had 2 pumps fail in the same ZL1.

I'd say print and save those threads, they are good as an email for the records. If they offer money right out the door you should get a lawyer involved for sure. The downside is the pain and time, but you'll get somewhere.

[Z OH 6]

Originally Posted by nighttowl

I can't tell if this is sarcasm or not.
No one should have to swap out an oil pump before thier spark plugs ever.

2017/2018 had a known oil pump issue. GM released a tech bulletin to address it. Dealers have generally been pretty good about replacing them under warranty. Some people with 2017/2018 models have even gone well over their warranty period without having a failure. 2019+ does not have this issue. If you bought a 2017/2018, be prepared to replace the oil pump at some point. Sure it sucks, but it's been a known issue for many years now so it's not like it's a surprise all of a sudden. The LT4 is otherwise a very reliable platform other than 2017/2018 oil pump.

[george]

Originally Posted by Z OH 6

2017/2018 had a known oil pump issue. GM released a tech bulletin to address it. Dealers have generally been pretty good about replacing them under warranty. Some people with 2017/2018 models have even gone well over their warranty period without having a failure. 2019+ does not have this issue. If you bought a 2017/2018, be prepared to replace the oil pump at some point. Sure it sucks, but it's been a known issue for many years now so it's not like it's a surprise all of a sudden. The LT4 is otherwise a very reliable platform other than 2017/2018 oil pump.

Unfortunately for the OP, this particular dealer and GM are being less than honest and forthright with what happened. The man had a known problem that was brought to their attention and basically ignored until he had engine failure. That's what makes the rest of us concerned about the dubious intent of GM and the dealer in question. I would contact the state attorney general and see if a lawyer is required if GM and the dealer continue to be difficult. Perhaps another dealer in the area would step up and help him if he has questions about the mechanical capacity of the current dealer to fix the problem. Seeing that the current dealer seems to have made it worse by misdiagnosing the issue and causing further engine damage.

[Z OH 6]

Originally Posted by george

Unfortunately for the OP, this particular dealer and GM are being less than honest and forthright with what happened. The man had a known problem that was brought to their attention and basically ignored until he had engine failure. That's what makes the rest of us concerned about the dubious intent of GM and the dealer in question. I would contact the state attorney general and see if a lawyer is required if GM and the dealer continue to be difficult. Perhaps another dealer in the area would step up and help him if he has questions about the mechanical capacity of the current dealer to fix the problem. Seeing that the current dealer seems to have made it worse by misdiagnosing the issue and causing further engine damage.

Oh I agree, I'm not saying what is going is not unfortunate at all. Either way, his contact should be GM at this point, not the dealer. The dealer will do whatever GM tells them to do.

[BMLMZ]

Originally Posted by KamZL1

This is just objectively a false statement.

And you’d be wrong.

[Vtor_ZL1]

Originally Posted by BMLMZ

Also the oil pump failure is GOING TO happen on any 2017/18 car without the revised pump. Here's Matt from RPM to explain.

https://youtu.be/WSlLGK8oRz4?si=hnmXEiCTEgRJJB-3&t=365

What exactly is he explaining? Time stamp is just some dude taking apart a broken oil pump ?

[george]

Originally Posted by Vtor_ZL1

What exactly is he explaining? Time stamp is just some dude taking apart a broken oil pump ?

I didn't hear any real explanation either. I think they mentioned that was the 3rd one they've done and that there was concern of engine damage. The best explanation I heard is from Zach at Katech.

[Xelor]

OP lick your wounds and fix the car. GM is not steeping up for a 6 year old used car.