Transmission Fluid Leak From Cooler Line on Buick LeSabre

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.

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Average mileage: 120,269 (80,000–210,000)
15 model years affected: 1990, 1991, 1992, 1993, more1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2005
35 people reported this problem
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Viewing 1 - 10 of 10 problem details
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?
2005 Buick LeSabre 103,000 mi,
Both transmission cooler lines were leaking. Both lines were replaced at a Buick dealer service department.
2002 Buick LeSabre 145,658 mi,
Transmission cooler lines started to leak at 142000 miles. Must fix soon...............
1994 Buick LeSabre 110,000 mi,
Lines near rad are very weepy. I have not replaced them yet. 110,000mi.
1997 Buick LeSabre 177,000 mi,
Leaking transmission fluid
1994 Buick LeSabre 130,000 mi,
I purchased my 94 LeSabre brand new. It has always been garage kept and adult driven. Despite my providing exceptionally good maintenance to this car, my transmission cooler lines failed three different occasions. Yes, I understand that stuff "Made in China" is garbage; however, these replacement tranny cooler lines were and are the only option available - which stinks!
2002 Buick LeSabre 114,000 mi,
Rubber Transmission cooler lines leak
2003 Buick LeSabre 94,000 mi,
My parents bought our Lesabre used at about 78,000 miles. We've had it for about 2 years now. A few weeks ago we noticed a leak. At first we thought it was oil, but today I hoped under the car only to realize it was the inlet hose for the tranny fluid to cool. The leak is at the . crimp fitting where the hard line meets rubber. Also there's multiple oil leaks. Great!
1994 Buick LeSabre 125,000 mi,
I replaced mt 1994 LeSabre's transmission cooler lines THREE times due to the same exact problem.
1992 Buick LeSabre 80,000 mi,
Leak where hard line meets hose.