Possible oil pressure issue - Page 5

LT4Greg · 05-24-2021, 08:56 AM

Quote:

Originally Posted by SJFGTO

Do we know for sure when GM began to make changes to the oil pump, how many changes were involved and the months/years these changes were made. At one point there was a discussion that the oil pump was changed in late 2017 I believe, but failures after that time period have continued to be documented. Mine is a January 2018 build and, although my oil pressure has always been good, never any hiccups, I am always concerned about the odds that I have a ticking time bomb too.

Looks like you are on your own if the oil pump fails anyway since yours has been tuned and modded. My concern is for folks like me with a stock ZL1 that may have a so called ticking time bomb and don’t know if the pump is one of the bad ones showing up in other ZL1s in case of a power train warranty claim which mine will be up in April 2022.

L78toLT1 · 05-24-2021, 10:01 AM

Quote:

Originally Posted by LT4Greg

Looks like you are on your own if the oil pump fails anyway since yours has been tuned and modded. My concern is for folks like me with a stock ZL1 that may have a so called ticking time bomb and don’t know if the pump is one of the bad ones showing up in other ZL1s in case of a power train warranty claim which mine will be up in April 2022.

I don't believe there are good pumps and bad pumps. I think it's a marginal design at best, one that will have far more than the usual number of failures, but that failures will still be limited to a fairly small percentage of cars. If 5% fail, that's still way more than average as far as oil pumps go.
Franky, I can't see how my pump has held up as long as it has. My '16 LT1 has a weaker crank and I'm a good bit above stock ZL1 power levels.

SJFGTO · 05-24-2021, 11:36 AM

Quote:

Originally Posted by LT4Greg

Looks like you are on your own if the oil pump fails anyway since yours has been tuned and modded. My concern is for folks like me with a stock ZL1 that may have a so called ticking time bomb and don’t know if the pump is one of the bad ones showing up in other ZL1s in case of a power train warranty claim which mine will be up in April 2022.

Yeah, I know my warranty is long gone. My concern is just operating it generally, occasionally I take a long road trip in the ZLE and having an idea if my oil pump is one GM at least tried to improve upon after the initial round of failures, if they ever did at all. I had an oil pump fail on my 2005 GTO and I know what to do when the first signs show up that it is taking a dump. I’d rather have that happen closer to home if possible and am considering replacing it anyway. I am just curious if GM has made one or more efforts to change the pump, and if so, when.

LT4Greg · 05-24-2021, 12:36 PM

Yeah I understand but I don’t think we will ever know if the pumps were improved or not.

ZX-10R · 05-24-2021, 12:55 PM

Quote:

Originally Posted by L78toLT1

I don't believe there are good pumps and bad pumps. I think it's a marginal design at best.

That seems to be Katech's view, and they also said they "can't see that the '19+ is any stronger". Hopefully they will post up the video they promised

Akura · 05-25-2021, 12:13 PM

Quote:

Originally Posted by ZX-10R

That seems to be Katech's view, and they also said they "can't see that the '19+ is any stronger". Hopefully they will post up the video they promised

Really did you expected another answer? Who would buy the katech´s pump if they affirm the new P/N from GM is solid?

ZX-10R · 05-25-2021, 12:21 PM

Sure, I get it - just hoping they will provide details on route of failure (e.g. stress cracks in the housing, etc)

Dealers sure aren't going to research this, and if GM knows they aren't saying anything (for obvious reasons)

nighttowl · 05-25-2021, 12:28 PM

Im wondering if katechs pump is any better.

ZX-10R · 05-25-2021, 12:40 PM

It looks stronger https://shop.katechengines.com/produ...sump-oil-pump/

Alain · 05-25-2021, 02:27 PM

how big of a pain in the ass is it to change the oil pump in these cars?

Mine is a 2018 (not sure what month it was built) i'd have to check the sticker on the door.

nighttowl · 05-25-2021, 06:39 PM

i found this video on youtube that shows the internal operation of the factory pump.

nighttowl · 05-25-2021, 06:40 PM

Oh wow - it automatically embedded the video.
When did this start?

Gunkk · 05-26-2021, 10:27 AM

Quote:

Originally Posted by nighttowl

Oh wow - it automatically embedded the video.
When did this start?

Years ago?

As long as you post a standard youtube URL (and NOT give it a mobile URL), it will embed.

ZX-10R · 05-26-2021, 11:01 AM

Quote:

Originally Posted by Alain

Mine is a 2018 (not sure what month it was built) i'd have to check the sticker on the door.

If I had a '17/'18 out of warranty I think it would be worth it for peace of mind if you plan to keep the car - maybe $1200 in labor?

05-24-2021, 12:36 PM	#60
LT4Greg Drives: 2017 Camaro ZL1 Coupe Join Date: May 2016 Location: Georgia Posts: 5,813	Yeah I understand but I don’t think we will ever know if the pumps were improved or not. __________________ ZL1 Coupe, PDR, Exposed carbon fiber hood insert, My Link with Nav, M6 6 speed and Silver Ice Metallic. Mods done: ceramic window tint, GM Accessories Camaro floor mats and Roto-Fab CAI.

05-25-2021, 12:28 PM	#64
nighttowl Sarcasm loading -------- Drives: 2018 ZL1 1LE Join Date: Dec 2011 Location: TX Posts: 1,808 View My Garage	Im wondering if katechs pump is any better. __________________ "The salesman actually told me to stop getting it sideways during the test drive" 2018 MBM ZL1 1LE - Stock 2014 CRT ZL1 574 rwhp, 537 rwtq - SOLD 2010 IBM SS Camaro VVT L99 w/ TR6060 swap, 489 rwhp, 444 rwtq - SOLD

05-25-2021, 02:27 PM	#66
Alain Drives: 2016 Challenger Hellcat, 2018 ZL1LE Join Date: Dec 2009 Location: Northern NJ Posts: 3,003	how big of a pain in the ass is it to change the oil pump in these cars? Mine is a 2018 (not sure what month it was built) i'd have to check the sticker on the door. __________________ 2016 Challenger Hellcat /B5 blue/Sepia interior/Brass Monkey Wheels/ 2018 ZL1 1LE/Red hot 2019 Shellby GT 350R/ Oxford white/ Matte Black Stripes/ Carbon Fiber Dash/ Electronics Package #413

05-25-2021, 06:40 PM	#68
nighttowl Sarcasm loading -------- Drives: 2018 ZL1 1LE Join Date: Dec 2011 Location: TX Posts: 1,808 View My Garage	Oh wow - it automatically embedded the video. When did this start? __________________ "The salesman actually told me to stop getting it sideways during the test drive" 2018 MBM ZL1 1LE - Stock 2014 CRT ZL1 574 rwhp, 537 rwtq - SOLD 2010 IBM SS Camaro VVT L99 w/ TR6060 swap, 489 rwhp, 444 rwtq - SOLD

05-25-2021, 12:21 PM	#63
ZX-10R Drives: 2019 ZL1 Riverside Join Date: Apr 2020 Location: Charlotte, NC Posts: 1,138	Sure, I get it - just hoping they will provide details on route of failure (e.g. stress cracks in the housing, etc) Dealers sure aren't going to research this, and if GM knows they aren't saying anything (for obvious reasons)

05-25-2021, 12:40 PM	#65
ZX-10R Drives: 2019 ZL1 Riverside Join Date: Apr 2020 Location: Charlotte, NC Posts: 1,138	It looks stronger https://shop.katechengines.com/produ...sump-oil-pump/

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