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Steady ticking noise under the dash

Tiny
LARRY RAVITZ
  • MEMBER
  • 1999 BUICK REGAL
  • V6
  • 2WD
  • AUTOMATIC
  • 180,000 MILES
When I start the car and turn on the ignition the lights are on in the dash immediately I hear a steady ticking noise under the dash. The noise continues even when I start the car and engine is running. I know the blend door actuator on the drivers side is bad however, what could cause this ticking noise? Possible blower fan cage broken?
Is the blower fan supposed to run even when the air or heater is off?
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Monday, March 5th, 2018 AT 2:31 PM

3 Replies

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Good morning.

Yes, the actuator makes that exact noise when it has failed. There are plastic gears in the actuator that strip and the ticking is the actuator trying to move as commanded.

It needs to be replaced.

Are you going to do this yourself?

Roy
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Tuesday, March 6th, 2018 AT 6:02 AM
Tiny
LARRY RAVITZ
  • MEMBER
  • 2 POSTS
Thank you.
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Tuesday, March 6th, 2018 AT 6:55 AM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
You are welcome.

Roy
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Tuesday, March 6th, 2018 AT 6:56 AM

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