Quick-Connect Fittings For Heater Hoses May Leak Engine Coolant on GMC K1500
Problem overview
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.
14 people reported this problem
1 commentGMC K1500 vehicles with this problem
Average mileage: 144,000 miles
(135,000 - 153,000)
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