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.Google+
Car Problem Reports
Buick Riviera Rubber Transmission Cooler Lines Can Leak Fluid
Buick Riviera Problem
Average Mileage: 161,933 mi (118,500 mi - 190,000 mi)
I have developed a fluid leak where the rubber meets the metal on the upper transmission line on the drivers side that runs under the breather filter from motor to air filter.
Visitor, 1996 Buick Riviera, 118,500 mi
Transmission Lines started leaking after I had brake lines, fuel lines and radiator replaced. Transmission fluid puddles under RF fender. I hate this car!
Transmission fluid leaking.