Oil pump failure 😞 - Page 2

scooter k · 01-24-2022, 06:34 PM

Quote:

Originally Posted by Camaro1973

Theres a TSB about it and the timing chain tensioner spring which could be the cause.

PIP5407A I believe is the TSB.

and here https://gm-techlink.com/?p=12041

I've seen this but it was a higher mileage vehicle.

ZX-10R · 01-24-2022, 07:19 PM

Quote:

Originally Posted by Camaro1973

The newer pumps are fine.

A little early to proclaim that as fact. How many '19+ cars have over 12k miles?

arpad_m · 01-27-2022, 02:23 PM

Quote:

Originally Posted by ZX-10R

A little early to proclaim that as fact. How many '19+ cars have over 12k miles?

It's 2022 already, so I'd imagine quite a few, yet the number of 2019+ cars with a failed oil pump hasn't grown for ages in the poll thread.

Of course this is just one forum thread, but given how many 2017-2018 failures were recorded there, it's a good indication.

JTRJSS · 03-10-2022, 06:55 PM

Had my car towed into dealer on Tuesday. No oil pressure, 0 on the gauge.
Just got the call from the dealer. The low oil pressure was caused by a bad oil pump. They changed the oil pump in my car. The invoice states "Found Pump Exploded".
2020 ZL1 10 spd auto 15,000 miles.

pauly1119 · 03-10-2022, 07:15 PM

When my warranty is up and I decide to do some upgrades I’ll definitely go after market oil pump.

ZX-10R · 03-10-2022, 08:04 PM

Quote:

Originally Posted by JTRJSS

Had my car towed into dealer on Tuesday. No oil pressure, 0 on the gauge. Just got the call from the dealer. The low oil pressure was caused by a bad oil pump. They changed the oil pump in my car. The invoice states "Found Pump Exploded". 2020 ZL1 10 spd auto 15,000 miles.

So much for "newer pumps are fine"! I knew this was coming because Katech told me nothing about the oil pump gear had changed on the '19+ pumps (that they could see). Chevy should issue a recall on this

Dave777 · 03-10-2022, 08:10 PM

Very sad to see cars with such low miles with a bad oil pump.

Zander was wise to immediately get rid of his car after repairs.

fielderLS3 · 03-10-2022, 08:36 PM

Is this a ZL1 LT4 specific issue, or is it a thing on the SS LT1 as well? What would you guess is the failure rate per 1000 cars?

ZL1 1LE · 03-11-2022, 09:23 AM

Quote:

Originally Posted by fielderLS3

Is this a ZL1 LT4 specific issue, or is it a thing on the SS LT1 as well? What would you guess is the failure rate per 1000 cars?

It's the same pump but perhaps, the LT4 puts more of a strain on it.

L78toLT1 · 03-11-2022, 10:43 AM

Quote:

Originally Posted by ZL1 1LE

It's the same pump but perhaps, the LT4 puts more of a strain on it.

This certainly appears to be the case. In sddition to the LT1& Lt4, most trucks and suv's use this pump and you don't hear of many failures. The pump holds up pretty well in NA applications. There are lots of high mileage trucks out there, if these were failing at the same rate as on the LT4, we would be looking at thousands of failures.

Camaro1973 · 03-11-2022, 12:12 PM

Quote:

Originally Posted by ZX-10R

So much for "newer pumps are fine"! I knew this was coming because Katech told me nothing about the oil pump gear had changed on the '19+ pumps (that they could see). Chevy should issue a recall on this

You do realize there's tens of thousands of these cars sold right? lol.

1 Guy has a failed pump on a 2020 and you lose your shorts over it.

arpad_m · 03-11-2022, 02:00 PM

Quote:

Originally Posted by Camaro1973

You do realize there's tens of thousands of these cars sold right? lol.

1 Guy has a failed pump on a 2020 and you lose your shorts over it.

^^^ he's not wrong

There will always be flawed individual components and occasional freak failures.

Mac7504 · 03-11-2022, 02:01 PM

Quote:

Originally Posted by Camaro1973

You do realize there's tens of thousands of these cars sold right? lol.

1 Guy has a failed pump on a 2020 and you lose your shorts over it.

Lmao! Very true.

The same could be said though, that this is just one guy we know of.

ZX-10R · 03-12-2022, 09:59 PM

The oil pump gear is a weak point, that isn't up for debate - they get stress fractures in some cars and later "explode". Clearly there is a materials problem. Again my theory is owners pushing the engine too hard before 10 quarts of cold oil are up to temp, which takes a long time

The gear was not changed on the '19+ model years according to Katech, so the "19+ and you have nothing to worry about" theory is shot at this point imo

Not "losing my shorts" - completely legitimate cause for concern if you're out of warranty. BIG price tag and possible damage to other parts of the engine.

03-10-2022, 06:55 PM	#18
JTRJSS THE GREEN GOBLIN Drives: 2020 ZL1 Rally Green Met.10 Spd AT Join Date: Apr 2012 Location: Harrison, NY Posts: 158	Had my car towed into dealer on Tuesday. No oil pressure, 0 on the gauge. Just got the call from the dealer. The low oil pressure was caused by a bad oil pump. They changed the oil pump in my car. The invoice states "Found Pump Exploded". 2020 ZL1 10 spd auto 15,000 miles. __________________ Rally Green Metallic, Sun Roof, 10 Speed Automatic. Mild 2 Wild exhaust controller, Brandmotion Curb Alert. More to come.

03-10-2022, 08:36 PM	#22
fielderLS3 Drives: 2016 Mazda6, 2011 Mustang 5.0 Join Date: Mar 2010 Location: Portage, Wisconsin Posts: 4,049	Is this a ZL1 LT4 specific issue, or is it a thing on the SS LT1 as well? What would you guess is the failure rate per 1000 cars? __________________ 2022 1SS 1LE (Arrived 4/29/22) "The car is the closest thing we will ever create to something that is alive." . 2022 1SS 1LE (Coming Soon)

03-10-2022, 07:15 PM	#19
pauly1119 Drives: 2018 ZLE Join Date: Feb 2018 Location: Palm City Fl Posts: 1,341	When my warranty is up and I decide to do some upgrades I’ll definitely go after market oil pump.

03-10-2022, 08:10 PM	#21
Dave777 Drives: 1985 Z28 Join Date: Aug 2020 Location: Florida Posts: 125	Very sad to see cars with such low miles with a bad oil pump. Zander was wise to immediately get rid of his car after repairs.

03-12-2022, 09:59 PM	#28
ZX-10R Drives: 2019 ZL1 Riverside Join Date: Apr 2020 Location: Charlotte, NC Posts: 1,138	The oil pump gear is a weak point, that isn't up for debate - they get stress fractures in some cars and later "explode". Clearly there is a materials problem. Again my theory is owners pushing the engine too hard before 10 quarts of cold oil are up to temp, which takes a long time The gear was not changed on the '19+ model years according to Katech, so the "19+ and you have nothing to worry about" theory is shot at this point imo Not "losing my shorts" - completely legitimate cause for concern if you're out of warranty. BIG price tag and possible damage to other parts of the engine.

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