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.

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Average mileage: 143,666 (122,000–187,000)
11 model years affected: 1990, 1991, 1992, 1993, more1994, 1995, 1996, 1997, 1998, 1999, 2006
14 people reported this problem
1 person shared problem details
Replaced Cooling Lines because of High Pressure Leak. Fluid sprayed all over Engine. It looked like Transmission and Coolanf Fluids
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