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Always hot

Tiny
JAMES007HANSON
  • MEMBER
  • 1996 CHEVROLET BLAZER
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 174 MILES
96 blazer temp control is always hot
Tuesday, June 7th, 2011 AT 7:55 PM

5 Replies

Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
Did you check applicable fuse/s? Does the compressor clutch engage? Any applicable trouble codes? Some of the national brand autostores used to check codes for free. You could be low on refrigerant? Maybe a directional door under the dash not operating like it should? Several possibilities.
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Tuesday, June 7th, 2011 AT 8:21 PM
Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
I guess your saying no cool air?
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Tuesday, June 7th, 2011 AT 8:22 PM
Tiny
JAMES007HANSON
  • MEMBER
  • 3 POSTS
Not AC, Ok so Did the following. I pulled out a fuse ODB? And let it sit for about 1 min changed the climate control to cool, put the fuse back in and now I have outside air coming in, however if I move the climate control at all it changes over to heat and will not go back to allowing outside air in.
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Tuesday, June 7th, 2011 AT 9:03 PM
Tiny
JAMES007HANSON
  • MEMBER
  • 3 POSTS
The fuse was RDO
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Tuesday, June 7th, 2011 AT 9:18 PM
Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
The only RDO fuse I could find, is for your radio. I don't know what that has to do with your hvac system? The actuators under the dash are vacuum controlled, you may need to check vacuum?
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Tuesday, June 7th, 2011 AT 9:37 PM

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