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
Buick LeSabre Rubber Transmission Cooler Lines Can Leak Fluid
Buick LeSabre Problem
Average Mileage: 104,000 mi (80,000 mi - 125,000 mi)
Visitor, 2005 Buick LeSabre, 103,000 mi
Both transmission cooler lines were leaking. Both lines were replaced at a Buick dealer service department.
Dealer says transmission cooler lines leaking and needs to be replaced. I didn't get an estimate on the cost...Does anybody out there know how much?
Visitor, 2002 Buick LeSabre, 114,000 mi
Rubber Transmission cooler lines leak
Visitor, 1994 Buick LeSabre, 110,000 mi
Lines near rad are very weepy. I have not replaced them yet. 110,000mi.
Visitor, 1992 Buick LeSabre, 80,000 mi
Leak where hard line meets hose.