Close
Cadillac Escalade Problems

Overheating and/or Coolant Loss Due to Leaking Quick-Connect Fitting on Cadillac Escalade

Problem Description and Possible Solution

The quick-connect fittings for the heater hoses tend to leak engine coolant. This problem commonly occurs because the metal housing has become brittle, which can break and cause leaks.

(9 people reported this problem)

Cadillac Escalade Vehicles With This Problem

RepairPal Verified
Average mileage: 143,750 (134,000–150,000)
4 model years affected: 1999, 2000, 2002, 2005
Not Your Cadillac Escalade Problem?
Brake problem? Or maybe a faulty head gasket cylinder?
Learn About Your Car Problems
Search For a Specific Car Problem
Viewing 1-3 of 3 comments
After repeatedly needing to refill the coolant reservoir, looked for the source and easily found traces of coolant on transmission oil filler tube, directly below the quick connect fitting on coolant line going through firewall. The tee connector needed to be replaced.