GMC Yukon Problem Report

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

(13 reports)

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.

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. -
broke off poor design -
Heater hose connector leaked and eventually broke off. -
fitting broke off, -
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