2000

  1. Davidson Mott

    No Heat at Idle/Heat Only at Acceleration.

    I'm trying to hunt down an issue I'm having with no heat at idle or yet alone just cruising on my 2000 GMC Yukon Denali. About the only time I get heat is when I'm either accelerating or when the engine is under additional load. It was doing it before I changed the heater core and still doing it...
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