Yukon/Denali 2WD V8-4.8L VIN V (2005)
Fuel Line Coupler: Service and Repair
Quick Connect Fitting(S) Service (Plastic Collar)
QUICK CONNECT FITTING(S) SERVICE (PLASTIC COLLAR)
REMOVAL PROCEDURE
IMPORTANT: There are several types of plastic fuel and evaporative emission (EVAP) quick connect fittings used on this vehicle. The following
instructions apply to all types of plastic quick connect fittings except where indicated.
1. Relieve the fuel system pressure. Refer to Fuel Pressure Relief Procedure.
2. Using compressed air, blow any dirt or debris from around the quick connect fitting.
CAUTION: Wear safety glasses when using compressed air in order to prevent eye injury.
3. Squeeze the plastic quick connect fitting release tabs together to disengage the quick connect fitting. This step applies to Bartholomew style
fittings ONLY.
4. Squeeze where indicated by the arrows on both sides of the plastic ring to disengage the quick connect fitting.
