2020 oil pump failure
 

Hi guys,

I saw this topic and share… maybe the owner is on this forum…

I thought a lot of us supposed that it was only a 2017-2018 problem…

Just because a 2020 has an oil pump failure doesn't mean it's a problem like it was in 2017-2018. There will always be some defects or failures in ANY year, it's when it's an unusually high percentage relative to unit sales that it becomes an issue. Overwhelmingly, 2017 and 2018 are typically reported with this issue, that does not mean there will not be a small number in 2019, 2020, 2021, 2022, etc. that won't have a defect.

I think we can never completely understand the extent of the problem unless we have exact numbers from GM. We have some idea, but our population is limited to those that use this website. The issue is probably more widespread. I wish GM would go further than the TSB regarding the spring. If other models used the same pump and there was a defect, it’s likely they are having failures not reported here.

If it’s a break in the pump that has the same failure, the defective part has not been re-engineered and manufactured correctly. The manufacture process and materials are still a problem, if the failure continues. Zach at Ktech (manufacturer of replacement oil pump) said every new pump from GM they stressed broke. I think warming the car may help but the problem remains.

Please add your car to the oil pump failure thread,

https://www.camaro6.com/forums/showthread.php?t=532479

I dont have an oil pump failure to report.

I've read and read on these oil pump failures and warm up the machine completely each time I get in.

No one that's posted in here, so far, are reporting a failed oil pump.....

Hi all,

This issue was the biggest reason I sold my '18 ZLE. I even had a really great 120K 10 year B to B extended warranty, but I did not like the stress feeling all the time that a fun day driving to the mountains could end up in a blown oil pump, leaving me stranded.

The new '22 ZLE has much better oil pressure and seems to be running as strong as my '18 did. I even used the newer 0W 40 Mobile 1 in the "18, but it still never had as good oil pressure as the new '22. I don't track my cars, and they always got early fluid break in changes and regular oil changes at no more than 4k miles.

It is true that owners will never know what, if any, changes GM and/or Melling did to these oil pumps. I pray my new '22 will not give me the same stress that the '18 did about the oil pressure/pump failure. It certainly is running at a much better (IMO) oil pressure than the '18 did.

I didn't get the extended warranty this time, as I am planning on purchasing a 2025 ZO6....after we see how those motors hold up after a few years in service. I really love my ZLE and will enjoy it to the fullest until 2025. If it starts to act up before then, I will trade it and get something else.

I bet someday in the future some GM exec will let it out that they knew about the oil pump issue but did nothing to actually fix it. It is most unfortunate that GM did such a great job on these ZL1's, but 'cheaped out' on fixing a super important part of such a high output engine.

JMO,

Take care,

JJ

Unfortunately Melling had nothing to do with these pumps so it's strictly on GM. If Melling was still producing pumps for GM we probably wouldn't be having this issue. You're probably right on them knowing the issue but just like the whole Ls7 head debacle they just want to ignore it and hope people move along.

Sorry, thought OP had a failure

Can you please quantify what you mean by better?
Did your 18 have an oil pump failure?
My cold idle is 36-42
Warm 29-32

Acceleration cold 40-60
Warm 30-50

WOT cold 60-70
Warm 50-70

Thank you for your input

… lol… do you know a lot of car series with such a problem ?? Un

That’s not like if it was something isolated… but… you’re right on this fact .. this is not a proof
But there is a presumption beam that make me think it’s the same as the others 2017 2018 problem…

Very presumptuous. The data thus far doesn't support your theory.