[Mark R]

Originally Posted by Katech_Zach

They did make revisions, there are 7 part numbers I believe. So I do think the later model years have improved pumps, but they still have chances of failure. Just at a lot less probability. Every time GM releases a new version, we buy one and test it like the rest. We have been able to break every pump we have stressed so far. The newer pumps are harder to break, but they still break.

I'm assuming your pumps pass the test, right?

[ZX-10R]

An oil pump subjected to normal service and correct viscosity oil should not fail within 250,000 miles - true for the vast majority of manufacturers. Completely unacceptable even if the failure rate is say 2-3%

[Mark R]

Originally Posted by ZX-10R

An oil pump subjected to normal service and correct viscosity oil should not fail within 250,000 miles - true for the vast majority of manufacturers. Completely unacceptable even if the failure rate is say 2-3%

Very true. But every vehicle has some sort of weakness. I've been on forums for years now, as I've bought and sold various motorcycles and cars, and seemingly every vehicle has some sort of serious problem that the aftermarket fixes. As ZL-1 owners, the oil pump is a serious defect, that can really take the shine off the apple.

However, I had my oil pump replaced with the Katech last fall, at the dealer, and it was $3,800 in total. I spent almost that much on an exhaust with installation. I spent $7,000 on PPF and ceramic coating. Changing out the oil pump was 5% of what I paid for the car, so looking at it that way, the new pump does not seem so bad.

[clg82]

Originally Posted by Mark R

Very true. But every vehicle has some sort of weakness. I've been on forums for years now, as I've bought and sold various motorcycles and cars, and seemingly every vehicle has some sort of serious problem that the aftermarket fixes. As ZL-1 owners, the oil pump is a serious defect, that can really take the shine off the apple.

However, I had my oil pump replaced with the Katech last fall, at the dealer, and it was $3,800 in total. I spent almost that much on an exhaust with installation. I spent $7,000 on PPF and ceramic coating. Changing out the oil pump was 5% of what I paid for the car, so looking at it that way, the new pump does not seem so bad.

were you walking funny when you left the shop that charged you that much

[Mark R]

Originally Posted by clg82

were you walking funny when you left the shop that charged you that much

It was $500 for the pump and $3200 for labor. It was at the dealer, so labor is more expensive, but the technician is the very best in town. His work is perfect, so I am happy.

[RobZL1]

I think he was talking about the ppf and ceramic for 7000 instead of maybe 3000

[Mark R]

Originally Posted by RobZL1

I think he was talking about the ppf and ceramic for 7000 instead of maybe 3000

Paint correction, full PPF, and ceramic coating was definitely expensive, but there is only 1 guy in Albuquerque who has the skill set to do this work. I also checked online, and that is a fair price for the work I had done.

I'm happy with the work, as the car still looks brand new. I also want to keep the car forever, so it's OK. That's why I changed the oil pump.

[GRUF78]

FYI to all whom had an oil pump failure in their ZL1.

2018 ZL1 1LE. Oil pump failure at 6000 miles. Engine replaced under warranty. CONTINUOUS motor problems since with engine using 2X more fuel and melting 3 Left cats, 2 sets of rear valance reflectors, 2 sets of tail lights, 2 sets of exhaust manifold bolts (fell out), et al. All in the next 3500 miles. Car has 9900 miles on it. Dealer says everything's fine. Engaged the legal system. GM offered a settlement since TX lemon law times out after 24 months. Not near enough.

Anyone out there engage GM for damages regarding this issue?

Thanks,

JM

[taylorforschool@gmail.com]

Originally Posted by GRUF78

FYI to all whom had an oil pump failure in their ZL1.

2018 ZL1 1LE. Oil pump failure at 6000 miles. Engine replaced under warranty. CONTINUOUS motor problems since with engine using 2X more fuel and melting 3 Left cats, 2 sets of rear valance reflectors, 2 sets of tail lights, 2 sets of exhaust manifold bolts (fell out), et al. All in the next 3500 miles. Car has 9900 miles on it. Dealer says everything's fine. Engaged the legal system. GM offered a settlement since TX lemon law times out after 24 months. Not near enough.

Anyone out there engage GM for damages regarding this issue?

Thanks,

JM

This is my nightmare

[pauly1119]

Originally Posted by RobZL1

I think he was talking about the ppf and ceramic for 7000 instead of maybe 3000

Mine was about the same price for PPF. That’s what it costs. I’m sure it’s just not the bumper.

[Chutzpah]

Originally Posted by GRUF78

FYI to all whom had an oil pump failure in their ZL1.

2018 ZL1 1LE. Oil pump failure at 6000 miles. Engine replaced under warranty. CONTINUOUS motor problems since with engine using 2X more fuel and melting 3 Left cats, 2 sets of rear valance reflectors, 2 sets of tail lights, 2 sets of exhaust manifold bolts (fell out), et al. All in the next 3500 miles. Car has 9900 miles on it. Dealer says everything's fine. Engaged the legal system. GM offered a settlement since TX lemon law times out after 24 months. Not near enough.

Anyone out there engage GM for damages regarding this issue?

Thanks,

JM

Your car sounds like a fire waiting to happen, seriously….I hope you have everything well documented.

Good luck, I don’t envy your position.

[george]

Originally Posted by Katech_Zach

They did make revisions, there are 7 part numbers I believe. So I do think the later model years have improved pumps, but they still have chances of failure. Just at a lot less probability. Every time GM releases a new version, we buy one and test it like the rest. We have been able to break every pump we have stressed so far. The newer pumps are harder to break, but they still break.

Hi Zach, I have a ‘17 ZL1. I’m taking your advice about watching for drops in pressure. I have 1200 miles on the car. My oil change at 900 miles showed a metallic glitter. I sent it in for oil analysis to Blackstone and they noticed it also. Other wear metals were good. Would this impact an oil pump failure?

[ZX-10R]

No - it's clearly a stress fracture issue, the metal isn't strong and/or thick enough

[george]

Originally Posted by ZX-10R

No - it's clearly a stress fracture issue, the metal isn't strong and/or thick enough

Then the theory behind allowing the oil to get to operating temperature is that there’s less stress on the pump related to decreased pressure? If GM manufacturer used substandard materials in the pump, I would expect that to be a failure in workmanship These vehicles should have either a recall or extension of warranty.