Thmoing sound from dashboard

Asked by Melissa Nov 09, 2018 at 01:25 AM about the 2001 Chevrolet Tahoe LS 4WD

Question type: Maintenance & Repair

I have a 2001 Tahoe and there is a thumping sound
coming from the dashboard/air vents when I start
the engine. Also, I noticed coolant on the ground by
the front passenger side tire.

1 Answer
9,520

Mike answered 5 years ago

The noise from the dash is probably one of the heater door actuators that went bad. Can you relate the location of the coolant leak to the cooling system reservoir? If so it may be cracked.

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