Car Problem Reports

GMC Yukon Quick-Connect Fittings For Heater Hoses May Leak Engine Coolant

GMC Yukon Problem
13 Reports
Me Too

Model Years Affected: 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999

Average Mileage: 155,400 mi (55,000 mi - 283,000 mi)


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.

  • Visitor, , 55,000 mi

    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.

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  • Visitor, , 168,000 mi

    broke off poor design

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  • Visitor, , 121,000 mi

    Heater hose connector leaked and eventually broke off.

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  • Visitor, , 150,000 mi

    fitting broke off,

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