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Old 04-17-2012, 07:33 PM
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Exclamation Need help, ac/heater fan stuck in defrost

Like i said in the title no matter what setting i put the direction in all it does is blows out of the defroster, any idea what is causeing this? i just bought the truck for an auction so i have no idea how long it was been doing it
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Old 04-17-2012, 07:37 PM
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Could be the switch or the blend door. Can you hear it try to switch

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Old 04-17-2012, 07:42 PM
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No not a sound


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Old 04-17-2012, 07:43 PM
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Vacuum loss.
You have 4wd? If so, check the lines to the hubs.
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Old 04-17-2012, 07:47 PM
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Quote:
Originally Posted by jesilvas View Post
Vacuum loss.
You have 4wd? If so, check the lines to the hubs.
Ya it is, I'll check in the morning thanks! Will I see a crack in the line or one might have poped off?


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Old 04-17-2012, 07:50 PM
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Both maybe.
You can plug off individual lines and see which one plugged makes the defrost change.
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Old 04-17-2012, 07:52 PM
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Ate they easy to find?


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Old 04-17-2012, 08:34 PM
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Hub lines usually only affect it when you engage the 4wd. Theres no vaccum goin to them until its engaged

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Old 04-18-2012, 01:46 AM
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Hey I bet it's your vacuum pump itself. Turn the key on you should hear your pump running. If not it's the pump.
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Old 04-18-2012, 06:37 PM
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Found out its the pump, she is as dead as a door nail, what are my options? Lol


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