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Air flow problem

Tiny
NAYLOR
  • MEMBER
  • 1998 BUICK PARK AVENUE
  • 165,000 MILES
Airflow only coming out of defrost area. Was working fine until I was tightening a loose ground connection from battery to engine. Sparks flew, didn't take positive post loose(duH). After that was when the problem started.I think it must be a fuse but owner's manuel doesn't list one.
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Monday, May 28th, 2012 AT 2:41 PM

5 Replies

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Check yoru actuators on the heater, that controls direction. There are two of them i'll send a generic pic along. The are eitehr electric or vacuum operated, they can be stuck or not working at all
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Tuesday, August 6th, 2019 AT 10:23 AM
Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
Is your vehile equipped with manual or auto HVAC?
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Tuesday, August 6th, 2019 AT 10:23 AM
Tiny
NAYLOR
  • MEMBER
  • 3 POSTS
Auto HVAC
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Tuesday, August 6th, 2019 AT 10:23 AM
Tiny
NAYLOR
  • MEMBER
  • 3 POSTS
How are the vents controlled. It must be elect. Since this only started after what I stated in my original quest.
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Tuesday, August 6th, 2019 AT 10:23 AM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Three fuses in junction block in car a test light cancheck them without pullling them out.
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Tuesday, August 6th, 2019 AT 10:23 AM

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