Pressure build up in radiator hose, overheating and heater not blowing warm air

Asked by GuruCD4LQ Feb 02, 2019 at 03:03 PM about the 2003 GMC Yukon XL 1500 4WD

Question type: Maintenance & Repair

I have pressure build up in radiator lines, causing it
to over heat. The heater doesn't blow out hot air
either.

1 Answer

GuruCD4LQ answered 5 years ago

I'm going to flush the heater core and see what that does before I go that expensive route. This is after I have changed the thermostat and water pump.

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Your Answer:

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