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Cadillac DTS Problems

Transmission Fluid Leak From Cooler Line on Cadillac DTS

Problem Description and Possible Solution

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.

(30 people reported this problem)

Cadillac DTS Vehicles With This Problem

RepairPal Verified
Average mileage: 103,530 (56,486–194,000)
5 model years affected: 2006, 2007, 2008, 2009, more2010
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Viewing 1-11 of 11 comments
There is a small leak from the back transmission coolant line. How can this problem get resolved without the engine having to be removed?
Upper tranny cooler line pulled out of quick connect at transmission. Lost all fluid within a minute. Good thing it happened in my driveway and not on a highway ir a $25 parts could have caused a $3500 trans replacement. Been a cadi guy all my life and the 2008 DTS has been a money pit...
The rear coolant line going into the transmission leaks, . Not sure how to fix it? Can't get a wrench on the damn thing. Trying to check out this web site to see if the solution is to pull the Engine Cradle and work from there?