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I have a 1994 Suburban 1500 heater is not.

Tiny
ANONYMOUS
  • MEMBER
  • 1994 CHEVROLET SUBURBAN
  • 188,000 MILES
I have a 1994 suburban 1500 heater is not working in front or rear and in the front I have no control on the vents it only blows on the floor flashes if I try and change from floor to vents or defrost also blows air on floor while driving with the fan off so seems that the vent is stuck open the rear I have control on vent or floor just will not blow heat just outside temp air I had the same problem with a buick I had and never figured out the problem this is driving me crazy.
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Friday, February 22nd, 2013 AT 10:13 AM

1 Reply

Tiny
MIKE H R
  • MECHANIC
  • 3,094 POSTS
Check the heater control vent doors and there connections. When changing the heater control do you hear any noise like air sucking. If you do check where you hear it and see if there is a cracked hose.
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Tuesday, April 23rd, 2013 AT 5:12 PM

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