2002 Chevy S-10

Tiny
EDDIE2TUFF
  • MEMBER
  • 2002 CHEVROLET S-10
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 101,000 MILES
2002 chevy s-10 heat is stuck on vent, when this started a fuse blew under the hood and the air conditioner quit working ive replaced the fuse the heater control switch. It blows awsome heat just cant get it too switch off vent and no airconditioner
some1 please help
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Friday, January 9th, 2009 AT 10:13 AM

4 Replies

Tiny
BRIAN 1
  • MEMBER
Did the heater control switch have any oil on it?I've had a few of these, follow this info and post back with what you find:Some customers may comment that the HVAC mode switch may be inoperative or stuck in the vent mode. After some diagnosis, oil in the HVAC control head and/or vacuum lines may be found.

Cause
When the transmission or transfer case heat up, the oil may expand and find its way into the transfer case vacuum switch. This oil expulsion may cause the vacuum switch seal to fail and allow transfer case oil to be drawn into the HVAC vacuum lines.

Correction
Replace the transfer case vacuum switch. Refer to the Transfer Case Vacuum Switch Replacement procedure in the Transfer Case sub-section of the Service Manual. Also, replace all contaminated parts in the HVAC system.

If these is oil in the lines you will have to replace all the vacuum pods that operate the hvac.
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Friday, January 9th, 2009 AT 12:44 PM
Tiny
EDDIE2TUFF
  • MEMBER
Its 2 wheel drive no transfer case
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Friday, January 9th, 2009 AT 12:59 PM
Tiny
EDDIE2TUFF
  • MEMBER
No the heater control didnt have any oil on it I relpaced it thinking it could have been the problem
the old heat control was fine however the passengers side floor board had some liquid in it
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Friday, January 9th, 2009 AT 1:02 PM
Tiny
BRIAN 1
  • MEMBER
Check the opeation of the vacuum pods, and blend doors for smooth operation, could be a door stuck or binding behind the dash. You may have 2 different problems here. Post back with what you find.
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Friday, January 9th, 2009 AT 1:07 PM

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