1994 Chevy Suburban relay noise?

1994 CHEVROLET SUBURBAN
130,000 MILES • V8 • 4WD • AUTOMATIC
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RIVER984
  • MEMBER
  • 1 POST
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?
Jan 31, 2009 at 7:15 AM
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JACOBANDNICKOLAS
  • ✓Experienced Mechanic
  • 110,248 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.
Feb 2, 2009 at 12:57 AM
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