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12-04-2012, 12:30 PM
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#1 |
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Registered User
Join Date: Jan 2012
Location: Redondo Beach California
Posts: 146
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Problem with my heater outlets
When I switch it from AC to heater the hot air still comes out of the AC outlets (on the dash) instead of down by your feet or the defroster outlets. It use to do this and it fix itself before.
Posted via Mobile Device
__________________
343 NEVER FORGET 9-11 FIGHT ON!!! GO USC!!! PROUD OWNER OF A 1970  1/2 TON
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12-04-2012, 01:16 PM
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#2 | |
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Registered User
Join Date: Sep 2012
Location: San Antonio, TX
Posts: 1,026
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Re: Problem with my heater outlets
Quote:
Posted via Mobile Device
__________________
Jeff 1972 Cheyenne Super SWB 350, Auto, Bucket Seats w/Console, Tach, Factory A/C, P/S ,P/B, Tilt 1998 Chevy 1500 Ext Cab 5.7, Pewter w/blue interior |
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12-04-2012, 03:10 PM
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#3 |
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Old member
Join Date: Jan 2002
Location: Liberty, & Garden City S.C. , U.S.
Posts: 19,936
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Re: Problem with my heater outlets
The flapper cable is the one mounted on the floor vent housing. Make sure it's operating. The flapper will get old and start falling apart after years of operation also.
 
__________________
1971 LWB Custom, 6.0LS & 4L80E, Speedhut.com GPS speedometer & gauges with A/C. 20" Boss 338's Grey wheels 4 wheel disc brakes. My Driver Seeing the USA in a 71 Upstate SC GM Truck Club 2013,14 and 2016 Hot Rod Pour Tour http://upstategmtrucks.com/ Get out and drive the truck this summer and have some fun! It sucks not being able to hear! LWB trucks rule, if you don't think so measure your SWB! After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs. |
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12-04-2012, 03:58 PM
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#4 |
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Senior Member
 Join Date: Jun 2000
Location: alb, nm
Posts: 413
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Re: Problem with my heater outlets
Same problem on my '72 Blazer. The flapper valve inside the heater box isn't moving correctly.
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12-04-2012, 04:03 PM
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#5 |
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Registered User
Join Date: Feb 2012
Location: Salado, Texas
Posts: 1,418
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Re: Problem with my heater outlets
you might check to make sure your cable that controls the flapper door is adjusted correctly. also depending on the a/c system you installed you may be able to remove the section of plastic where the flapper door is and make sure there is nothing stuck in the door/in the way of the door completely closing. both are common problems.
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12-05-2012, 08:23 PM
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#6 |
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Registered User
Join Date: Jan 2012
Location: Redondo Beach California
Posts: 146
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Re: Problem with my heater outlets
Thanks guys for the suggestions!!!! Got it working for the cold mornings in So Cal lately!!!!
Posted via Mobile Device
__________________
343 NEVER FORGET 9-11 FIGHT ON!!! GO USC!!! PROUD OWNER OF A 1970 1/2 TON
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