1999 k2500 454 vertec. Engine running at operating temp but no heat out of the vent. Heater core lines not getting hot.(no flow)
After bypassing heat controls and replacing/testing much of the heating system I found what looks like a plastic bag in the coolant line coming off the intake.
Негізгі бет 1999 Suburban no heat. You won't believe what the problem was.
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