Diff Leak on new zl1..

Crush_ZL1 · 04-06-2021, 11:37 AM

Hi all

I have a 2019 zl1 that I bought new last year, I have roughly 700 miles on it and the rear differential seems to be leaving some drip marks in the driveway. The dealer replaced the right rear axle seal and then took it back a second time after they said it needed to be re torqued. They had the car two times and it is still leaking, and this will be my third time going back...

Any advice on how I should handle this with them before getting corporate involved? Am I wrong for wanting the differential replaced at this point?

Any input greatly appreciated, thanks guys!

pauly1119 · 04-06-2021, 11:44 AM

I would bring it to another dealer at this point.

Crush_ZL1 · 04-06-2021, 11:47 AM

Yeah, the issue is that I’m getting tuned in June so this has to get fixed without failure before then. I figured I’d give them one more shot until I go to different place. I think it is the pinion seal in the front side since it is not leaking from the drain plug on the back.

pauly1119 · 04-06-2021, 12:12 PM

I don't think a tune will effect a documented issue on the diff but you never know. Its probably the pinion seal like you said.

XQZMYZ · 07-07-2022, 12:15 PM

I have a 21 ZL1 with 3600 miles on it and my rear diff is leaking, not sure where it is coming from since the techs found it during an oil change. It will be in on Monday 7/11 for warranty repair.

SFV1LE · 07-07-2022, 12:38 PM

Quote:

Originally Posted by XQZMYZ

I have a 21 ZL1 with 3600 miles on it and my rear diff is leaking, not sure where it is coming from since the techs found it during an oil change. It will be in on Monday 7/11 for warranty repair.

Good luck and let us know where it's coming from, with 2 posts on this I'm checking mine today.

Mac7504 · 07-07-2022, 07:13 PM

I hate reading these, makes me paranoid af about my 2022 with only 900 miles on her. I was thinking about having the dealer do the diff fluid change at 1500 but not I'm not so sure.

Crushed 1LE · 07-07-2022, 08:16 PM

Just had my 2022 ZL1 diff oil flushed and changed. Try and find a tech that works exclusively on Corvettes and Camaros. I'm lucking that I know the tech at my dealership and he is the only one who touches my car.

Vehicle has 800kms on it and this is very much a required service.

raptor5244 · 07-07-2022, 09:17 PM

Quote:

Originally Posted by Mac7504

I hate reading these, makes me paranoid af about my 2022 with only 900 miles on her. I was thinking about having the dealer do the diff fluid change at 1500 but not I'm not so sure.

It is pretty simple to do it yourself. I did mine a couple weeks ago. Takes about 20 minutes and save some coin.

Lots of DIY info in the forums here if you get motivated.

Mac7504 · 07-07-2022, 10:17 PM

Quote:

Originally Posted by raptor5244

It is pretty simple to do it yourself. I did mine a couple weeks ago. Takes about 20 minutes and save some coin.

Lots of DIY info in the forums here if you get motivated.

I'll have to read up on it. I do all my own stuff on my other cars but this one I just wanted to have everything documented but my last dealer visit was less than stellar.

2SS Capt · 07-08-2022, 12:06 AM

Quote:

Originally Posted by Mac7504

I'll have to read up on it. I do all my own stuff on my other cars but this one I just wanted to have everything documented but my last dealer visit was less than stellar.

Do it yourself, super easy, just buy a pump for the diff fluid bottle...

https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1

Mac7504 · 07-08-2022, 12:09 AM

Quote:

Originally Posted by 2SS Capt

Do it yourself, super easy, just buy a pump for the diff fluid bottle...

https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1

I've got a pump like that.

U guys inspired me to do it

raptor5244 · 07-08-2022, 10:05 AM

Quote:

Originally Posted by Mac7504

I'll have to read up on it. I do all my own stuff on my other cars but this one I just wanted to have everything documented but my last dealer visit was less than stellar.

Yeah, this is why I change my own oil and diff fluid now. The last time I took my car to the dealer the tech left the old oil filter o-ring on the car and put the new oil filter on top. Drove home and needless to say, oil drips all over the garage floor.

I bought some ramps and do the fluid changes myself now.

Mac7504 · 07-08-2022, 10:21 AM

Quote:

Originally Posted by raptor5244

Yeah, this is why I change my own oil and diff fluid now. The last time I took my car to the dealer the tech left the old oil filter o-ring on the car and put the new oil filter on top. Drove home and needless to say, oil drips all over the garage floor.

I bought some ramps and do the fluid changes myself now.

Damn that blows! Got to love dealer work. Lol

Yeah I've purchased some race ramps but they are still sitting in the box, just had the oil changed recently.

04-06-2021, 11:37 AM	#1
Crush_ZL1 Drives: 2019 Camaro ZL1 Join Date: Dec 2020 Location: Long Island, NY Posts: 18	Diff Leak on new zl1.. Hi all I have a 2019 zl1 that I bought new last year, I have roughly 700 miles on it and the rear differential seems to be leaving some drip marks in the driveway. The dealer replaced the right rear axle seal and then took it back a second time after they said it needed to be re torqued. They had the car two times and it is still leaking, and this will be my third time going back... Any advice on how I should handle this with them before getting corporate involved? Am I wrong for wanting the differential replaced at this point? Any input greatly appreciated, thanks guys!

04-06-2021, 11:44 AM	#2
pauly1119 Drives: 2018 ZLE Join Date: Feb 2018 Location: Palm City Fl Posts: 1,371	I would bring it to another dealer at this point.

04-06-2021, 11:47 AM	#3
Crush_ZL1 Drives: 2019 Camaro ZL1 Join Date: Dec 2020 Location: Long Island, NY Posts: 18	Yeah, the issue is that I’m getting tuned in June so this has to get fixed without failure before then. I figured I’d give them one more shot until I go to different place. I think it is the pinion seal in the front side since it is not leaking from the drain plug on the back.

04-06-2021, 12:12 PM	#4
pauly1119 Drives: 2018 ZLE Join Date: Feb 2018 Location: Palm City Fl Posts: 1,371	I don't think a tune will effect a documented issue on the diff but you never know. Its probably the pinion seal like you said.

07-07-2022, 12:15 PM	#5
XQZMYZ Drives: 2021 ZL1 Join Date: Sep 2021 Location: WA Posts: 16	I have a 21 ZL1 with 3600 miles on it and my rear diff is leaking, not sure where it is coming from since the techs found it during an oil change. It will be in on Monday 7/11 for warranty repair.

07-07-2022, 07:13 PM	#7
Mac7504 Drives: 2003 Monte Carlo SS SLP, 2022 ZL1 Join Date: Aug 2021 Location: Los Angeles, CA Posts: 493	I hate reading these, makes me paranoid af about my 2022 with only 900 miles on her. I was thinking about having the dealer do the diff fluid change at 1500 but not I'm not so sure.

07-07-2022, 08:16 PM	#8
Crushed 1LE Drives: 2022 ZL1 1LE Join Date: Apr 2019 Location: Chemainus BC, Canada Posts: 499	Just had my 2022 ZL1 diff oil flushed and changed. Try and find a tech that works exclusively on Corvettes and Camaros. I'm lucking that I know the tech at my dealership and he is the only one who touches my car. Vehicle has 800kms on it and this is very much a required service.

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