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.Google+
Car Problem Reports
Cadillac DeVille Rubber Transmission Cooler Lines Can Leak Fluid
Cadillac DeVille Problem
Average Mileage: 128,988 mi (15,000 mi - 210,000 mi)
Visitor, 2003 Cadillac DeVille
trans leaks terrible .........from where?
Visitor, 2005 Cadillac DeVille, 140,000 mi
2 inch trans fluid leak passenger side front of vechil is this a radiator cproblen
Visitor, 2003 Cadillac DeVille, 154,234 mi
Transmission fluid leaking from the upper cooler line
Visitor, 2001 Cadillac DeVille, 149,000 mi
Transmission fluid leak
Visitor, 2005 Cadillac DeVille, 100,500 mi
Trany fluid leaking on rear axl
Visitor, 1998 Cadillac DeVille
Transmission cooler line leaking. Replaced radiator and all hoses.
Upper transmission lines leak at connections, leaking onto exhaust.