Overheating and/or Coolant Loss Due to Leaking Quick-Connect Fitting on GMC Yukon

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.

Problem Data
RepairPal Verified
Average mileage: 144,333 (55,000–283,000)
9 model years affected: 1992, 1993, 1994, 1995, more1996, 1997, 1998, 1999, 2008
15 people reported this problem
Viewing 1 - 4 of 4 comments
I have had the connector replaced by a GM mechanic twice in three years. I bought(4) connector none stopped the leak. I then went to the repair site and the info given states to replace the connector with a threaded hose connector from Advance Auto Parts. Will ask for this part at Advance Auto Parts.