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#3268590 - 06/15/13 04:01 PM truck hvac
greygoose
4 Point


Registered: 11/23/12
Posts: 463
Loc: shelby county

Offline
ac would only blow from defrost.changed drivers side mode actuator and now it blows out of all vents but defrost.anyone know what is going on?
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#3269205 - 06/16/13 09:04 PM Re: truck hvac [Re: greygoose]
HuntingDicksonDTC
8 Point


Registered: 11/09/06
Posts: 2324
Loc: Dickson

Offline
Alot of things could be going on here, cant plug in actuator till its mounted to case, after replacement of actuator, motors have to be relearned to set min/max positions
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#3269492 - 06/17/13 11:00 AM Re: truck hvac [Re: HuntingDicksonDTC]
TNDeerGuy
12 Point


Registered: 11/28/06
Posts: 5892
Loc: Old Hickory/Mt.Juliet, TN

Offline
Cracked or split vacuum hose is the leading cause of your issue.
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#3269561 - 06/17/13 12:30 PM Re: truck hvac [Re: TNDeerGuy]
HuntingDicksonDTC
8 Point


Registered: 11/09/06
Posts: 2324
Loc: Dickson

Offline
there are no vacuum lines on a 2000 pickup hvac, all electric actuators
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Treat a man as he is & he will remain as he is.

Treat a man as he could be & he will become what he should be.

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#3324884 - 08/16/13 12:15 PM Re: truck hvac [Re: HuntingDicksonDTC]
The ScubaCamper
4 Point


Registered: 08/14/13
Posts: 276
Loc: Chattanooga, TN

Offline
I had a similar problem on my '99 blazer - turned out to be a broken door within the HVAC system. long story short, I had to take out the entire dash just to replace the broken door.

While I was in there, I replaced the heater core.

I don't know if it's related or not, but now I get the new-car smell when I turn the A/C on recirculate. \:\)

By the way - the 99 blazer runs on vacuum actuators too - luckily I didn't have any issues with that....
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#3344185 - 09/01/13 09:37 PM Re: truck hvac [Re: HuntingDicksonDTC]
Boone 58
16 Point


Registered: 06/23/04
Posts: 14537
Loc: Food Plot

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The problem in America is not that ungodly people have said yes to ungodly things, but rather that Godly people have refused to say "no" to ungodly things.
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