Transmission Fluid Leak From Cooler Line on Pontiac Grand Prix

The rubber section of an automatic transmission cooler line may develop a fluid leak . In some cases the leaking section of hose can be replaced. In others, the complete cooler line must be replaced to correct this concern.

RepairPal Verified
Average mileage: 146,200 (110,000–190,000)
11 model years affected: 1990, 1991, 1992, 1993, more1994, 1995, 1996, 1997, 1998, 1999, 2006
16 people reported this problem
Get Your Car Fixed at a RepairPal Certified Shop.
We certify shops based on expertise, quality work, and verified customer reviews
Viewing 1 - 2 of 2 problem details
1994 Pontiac Grand Prix 190,000 mi,
Leaking transmission fluid
2006 Pontiac Grand Prix 122,000 mi,
Replaced Cooling Lines because of High Pressure Leak. Fluid sprayed all over Engine. It looked like Transmission and Coolanf Fluids