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uglyota
08-08-2005, 09:51 AM
what hs broken when my in-cab fan won't turn on. It was intermittent for a while but now won't do anything. Is the switch bad, is there a blower resistor that goes out on these, are the brushes on the fan worn? Thanks in advance
97 gmc sierra z-71

jerryg79
08-08-2005, 10:06 AM
I killed the switch on mine once while doing a booty fab stereo install. Accidentaly had the battery connected while doing some final adjustmens and a hot wire hit the circuit board on the back of the switch. Nothing would turn on though. Dogget sold me the whole "new" 3-switch panel for $25.

uglyota
08-08-2005, 10:43 AM
what do you mean nothing would turn on? The whole panel was dead, or just the a/c switch panel? That's easy to get to, isn't it? Just pop the trim off and screws should be visible?

mudtoy67
08-08-2005, 11:02 AM
Does it work on High or not at all? If it works on high then I would go for the blower resistor, I think it's mounted on the pass side under dash. If it doesn't work on high then you'll prob need to pull it apart and do some checking around with a voltmeter to see if you're getting power to the switch, getting power out of the switch to the resistor, and out of the resistor.

redcagepatrol
08-08-2005, 11:10 AM
my Dodge only blows out of the defrost locations now - happened somwhere between Moab and Ouray. Made for a crappy ride home.

The AC works but it just doesn't blow out of the main vents. Any suggestions?

Sorry to hijack the thread :gigem:

uglyota
08-08-2005, 11:15 AM
No worky at all. I also have been having problems where it was slow or intermittent switching between vents. Maybe related? Maybe the whole switch panel's toast? Gotta fix this before I can hook up the a/c :(

fbronco86
08-08-2005, 12:52 PM
my Dodge only blows out of the defrost locations now - happened somwhere between Moab and Ouray. Made for a crappy ride home.

The AC works but it just doesn't blow out of the main vents. Any suggestions?

Sorry to hijack the thread :gigem:

Does your truck uses vaccum to operate the doors that control the air locations? Some diesels use electric solenoids I have a vaccum pump on my truck to run all my fun stuff like that.

redcagepatrol
08-08-2005, 01:03 PM
I think it uses a vaccum to actuate it but I'm not sure. I checked the vaccum lines in the engine compartment from the pump and they all looked good.

Doug Krebs
08-08-2005, 01:10 PM
I think it uses a vaccum to actuate it but I'm not sure. I checked the vaccum lines in the engine compartment from the pump and they all looked good.

TDR link (http://www.turbodieselregistry.com/forums/showthread.php?t=134455&highlight=defrost+vents)

More (http://www.turbodieselregistry.com/forums/showthread.php?t=132542&highlight=defrost+vents)

seal kit (http://www.turbodieselregistry.com/forums/showthread.php?t=131658&highlight=defrost+vents)

more (http://www.turbodieselregistry.com/forums/showthread.php?t=127541&highlight=defrost+vents)

there are 14 pages of this... Looks like scotty could use a membership to TDR

Membership (http://tdr-online.com/AB1038044equick/shopexd.asp?id=52) :flipoff2: