air flow in cabin not working

60

Asked by Jan 04, 2013 at 08:57 AM about the 1986 Chevrolet Caprice Base

Question type: Maintenance & Repair

The air flaps seem to be off when the heater is set to defrost it comes out of the bottom vents. When on heat it comes out the dash vents. Where should I begin checking on this

6 Answers

99,195

Those doors are controlled by vacuum. Check for leaks and cracked hoses. You may just want to replace the hose from the engine to HVAC control panel without looking for leaks - it's cheap and probably in that section anyway.

3 of 3 people found this helpful.
112,255

As tenspeed stated its probably a vacuum issue. Mid 80 chevy cars have a vacuum deverter valve right on the back of the control panel. It has I believe five out going vacuum lines hooked to it. It controls the flaps according to what you have the control panel set to do.(defrost, heat, ect. ). These tend to go out as they get old. If you have good vacuum going to it but none coming out to control the flaps I would look into replacing it.. Hope this helps

2 of 2 people found this helpful.
60

Thanks for pointing me in the right direction. The cog that rotates the vacuum and control arm together was not set. When I would move the control arm from AC to vent to heat it was not turning the vacuum controller. Once I set it correctly the AC is now blowing correctly.

5 of 5 people found this helpful.
60

Before adjustment

1 of 1 people found this helpful.

My blower motor is new but won't work when plugged up properly, same as well with my air compressor. The clutch clicks on and works fine if i run power to it but not when hooked up correctly. I've checked and replaced the dash unit above radio and checked all fuses, do you know or help me out with my problem please?

Mine is an 89 Chevy caprice

Your Answer

Add photo

Related Questions

  • air flow in cabin not working 6 answers

    The air flaps seem to be off when the heater is set to defrost it comes out of the bottom vents. When on heat it comes out the dash vents. Where should I begin checking on this

    1986 Chevrolet Caprice Base

    -

    Maintenance & Repair

  • Tempature gauge and fans not working

    My 1996 caprice has a problem to where the fans do not turn on and the tempature gauge does not move at all and the car is overheating anyone got any ideas on how to fix this it would be greatly ap...

    1996 Chevrolet Caprice Base

    -

    Maintenance & Repair

  • What is scraping my flywheel to cause a rattling noise in my 1987 Chevy caprice? 10 answers

    I have a 305 engine 8 cylinder...my flywheel is not cracked and the weight and teeth are still in good condition but I did notice scrapes on the edge of the teeth.

    1987 Chevrolet Caprice Classic Brougham

    -

    Maintenance & Repair

  • Chevy Caprice does not start after driving in summer (after running airconditioned on) 2 answers

    I have chevorlet caprice 2006 LTZ, whenever I switch off my car after running with AC on (means heat shows 50%) does not start. It simply cranks up but does not start. If I wait for for sometimes, e...

    Chevrolet Caprice

    -

    Maintenance & Repair

  • signal lights not flashing 1 answer

    signal lights not flashing

    1993 Chevrolet Caprice LS

    -

    Maintenance & Repair

Caprice

Looking for a Used Caprice in your area?

CarGurus has 175 nationwide Caprice listings and the tools to find you a great deal.

ZIP:

Search Chevrolet Caprice Questions

Chevrolet Caprice Experts

#1 Js08016
Js08016
Reputation 490
#2 dandyoun
dandyoun
Reputation 270
#3 tennisshoes
tennisshoes
Reputation 230
View All

Related Models For Sale

Used Chevrolet Impala
556 Great Deals out of 35,581 listings starting at $899
Used Chevrolet Camaro
357 Great Deals out of 31,259 listings starting at $2,500
Used Chevrolet Monte Carlo
12 Great Deals out of 1,424 listings starting at $2,400
Used Dodge Charger
529 Great Deals out of 28,516 listings starting at $2,500
Used Ford Mustang
710 Great Deals out of 44,429 listings starting at $1,500
Used Chevrolet Corvette
223 Great Deals out of 22,144 listings starting at $3,750
Used Ford Crown Victoria
15 Great Deals out of 1,254 listings starting at $1,995
Used Buick Regal
169 Great Deals out of 10,546 listings starting at $4,000
Used Oldsmobile Cutlass Supreme
111 listings starting at $1,995

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.