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12-07-2004, 09:56 AM
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#1 | |
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AF Newbie
Join Date: Dec 2004
Location: Albany, New York
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heater blower motor stay on
I have a 1999 Astro with a strange problem, the heater blower stays on at all times. This happened while I was on vacation, so I came back to a dead battery. After connecting jumper cables, the heater blower started without keys in the ignition. The van does not have a remote starter.Any ideas where to start looking?
I went out and tried to see what I could do with this after I posted. After I pulled the 30 amp A/C fuse I heard the fan relay drop out. When I put the fuse in again the blower worked fine. Does anyone know where I can get a copy of the wiring diagram? Last edited by paul58; 12-07-2004 at 07:52 PM. |
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12-07-2004, 07:40 PM
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#2 | |
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AF Enthusiast
Join Date: Sep 2003
Location: New Washington
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Re: heater blower motor stay on
Bad ignition switch (or relay if you have a remote starter). GM is having major recalls with ignition switches
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Silverado Ext. Cab 4x4 z71 Pioneer 4900mp Orion P6.2 Componet sets front Orion C63 Coax rear DirectedVideo 9" all in one DVD with surround 2007 SATURN OUTLOOK AWD XR with full entertainment package |
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12-17-2004, 07:53 PM
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#3 | |
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AF Newbie
Join Date: Nov 2004
Location: Columbus, Ohio
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Bad ign. switch...??? I would replace the relay first. I went to a junk yard and got two for under 10 beans. If it was the ign, switch u would have alot more than just a blower fan staying on.
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1994 2wd Astro... 221,723 mi. Like New Last edited by DCauffie; 12-18-2004 at 06:42 PM. |
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05-01-2005, 03:15 AM
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#4 | |
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AF Newbie
Join Date: May 2005
Location: Ventura, California
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Re: heater blower motor stay on
I just incountered the same problem and was wondering what corrected the problem, the ign switch or the relay?
As soon as I hook up the battery, the blower comes on. When the vehicle is started, there is no controling the speed at all, and the rear ac does not work either now. It must be the relay I would think. Right? Thanks in advance for any additional information. |
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