Transmission Fluid Leak From Cooler Line on Buick Rendezvous

Problem Description and Possible Solution

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

Problem Data
RepairPal Verified
Average mileage: 111,900 (72,500–220,000)
3 model years affected: 2002, 2003, 2005
8 people reported this problem
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Red transmission fluid leaking from top transmission coolant pipe where the rubber section mates to the metal section.