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.

Problem Data
RepairPal Verified
Average mileage: 97,068 (56,486–155,437)
5 model years affected: 2006, 2007, 2008, 2009, more2010
28 people reported this problem
Viewing 1 - 10 of 10 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?
Transmission cooling line leaks
Slow transmission fluid leak from cooling line at rear of transmission
Transmission line connector broke. I lost all fluid. Fluid all over my brakes.
when in for oil change the tec noticed the trans line leak. They repaired for $495.00
problem was identified and we are searching for corrective action
Parked my car and about 30 minutes later a lot of transmission fluid was under neath
Slow leak of transmission fluid