1994 Chevy Suburban relay noise?

Tiny
RIVER984
  • MEMBER
  • 1994 CHEVROLET SUBURBAN
  • V8
  • 4WD
  • AUTOMATIC
  • 130,000 MILES
I GET A LOUD CLACKING NOISE FROM UNDER DASH OF THE PASSENGER SIDE IN THE CAB WHEN I TURN ON THE IGNITION AND WHEN I TURN IT OFF. THE NOISE STOPS AFTER A COUPLE MINUTES. WHAT COULD IT BE AND HOW CAN I FIX?
Saturday, January 31st, 2009 AT 3:15 PM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,706 POSTS
Hi:
It sounds like a vent door is making noise. Have a helper turn the ignition on and off while you listen closely under the dash. Pay close attention to the HVAC ductwork.
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Monday, February 2nd, 2009 AT 8:57 AM

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