Slipping trans code
Thread Starter
Burning Brakes
Joined: Aug 2009
Posts: 836
Likes: 8
From: Wrentham Mass
2018 C2 of Year Finalist
Slipping trans code
Sold my 99 coupe with 8600 miles and new owner is getting a trans slipping code with a warning light. Dealer can't diagnose the issue and basically wants a blank check. Anyone have a clue what this might be? Fluid is new and the car never gave me problem before. I'm a little perturbed at the new owner as be lives in PA and I was in Carlisle, but he wouldn't even drive over to have it diagnosed on my dime. Help....
Le Mans Master
Joined: May 2006
Posts: 7,866
Likes: 249
From: Hillsboro OR
Sold my 99 coupe with 8600 miles and new owner is getting a trans slipping code with a warning light. Dealer can't diagnose the issue and basically wants a blank check. Anyone have a clue what this might be? Fluid is new and the car never gave me problem before. I'm a little perturbed at the new owner as be lives in PA and I was in Carlisle, but he wouldn't even drive over to have it diagnosed on my dime. Help....
When I had my H/C installed the fluid was checked hot and was full. The trans slipped. I checked at the correct temp and found I was 22 oz. low.
I topped it off and no more slipping. 
Hope that helps.
Racer
Joined: Apr 2010
Posts: 299
Likes: 1
From: Punta Gorda Florida
Sold my 99 coupe with 8600 miles and new owner is getting a trans slipping code with a warning light. Dealer can't diagnose the issue and basically wants a blank check. Anyone have a clue what this might be? Fluid is new and the car never gave me problem before. I'm a little perturbed at the new owner as be lives in PA and I was in Carlisle, but he wouldn't even drive over to have it diagnosed on my dime. Help....
Even at 11 years old, you shouldn't need to open the trans until 80,000 miles or more, even for fluid.
And.........of course the dealer can't wait for your OK
Thread Starter
Burning Brakes
Joined: Aug 2009
Posts: 836
Likes: 8
From: Wrentham Mass
2018 C2 of Year Finalist
He bought the car two weeks ago. A Chevy dealership cleared the code and it returns, bit does not engage "safe mode". The code is P1870 and the car has a true odometer of 8600 miles. All fluids are clean and new. I only drove the car 2600 miles the last 2 years. Hello,VetteDoctors...are you out there and can you advise?
Last edited by M3MOTORSPORTS; Aug 30, 2011 at 12:16 AM.
Racer
Joined: Apr 2010
Posts: 299
Likes: 1
From: Punta Gorda Florida
why did you change the trans fluid ?? I was going to change mine, at 30,000, but I was advised not to. I know that if it isn't filled with the correct amount, and at the correct temperature, by someone qualified, then it can cause slipping.
You might watch Two Guys Garage on Speed Channel for the three C5 Corvette episodes. Number 3 (episode 225) has them changing the fluid and filter on the transmission.
You might watch Two Guys Garage on Speed Channel for the three C5 Corvette episodes. Number 3 (episode 225) has them changing the fluid and filter on the transmission.
