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

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.

RepairPal Verified
Average mileage : 155,400 (55,000–283,000)
8 Years Affected: 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999
13 people reported this problem
4 people shared problem details
1996 GMC Yukon55,000
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.
2 people like thisFlag inappropiate
1995 GMC Yukon168,000
broke off poor design
1 person likes thisFlag inappropiate
1996 GMC Yukon121,000
Heater hose connector leaked and eventually broke off.
1997 GMC Yukon150,000
fitting broke off,
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