Car Problem Reports

Buick Riviera Rubber Transmission Cooler Lines Can Leak Fluid

Buick Riviera Problem
12 Reports
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Model Years Affected: 1990, 1991, 1992, 1993, 1995, 1996, 1997, 1998, 1999

Average Mileage: 167,055 mi (140,165 mi - 185,000 mi)


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.

  •  Rookie

    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.

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