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#1
07-13-2012, 06:34 PM
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Intermittant blower motor
The Blower motor in my 2001 Astro with air has begun to operate when it feels like it. When the air or heat or vent is on the blower will operate in all speeds for a while(5 minutes sometimes more) then just stop. Cold air or warm air will blow into the truck, just not under power. Turning off the control switch for the entire system for several minutes will reset the motor and the cycle will repeat. Any ideas? I thought maybe the Blower motor resistor was overheating and shutting off for a time. The fact that it seems to work in all speeds for a fairly standard amount of time precludes a bad connection but maybe not. Anyway, any ideas or past experience with this would be appreciated.
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#2
07-13-2012, 06:39 PM
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Re: Intermittant blower motor
Check the conmector to blower motor and to resistor relay block- probably a hot spot there....
__________________
Automotive A/C Engineer with: '99 IH 4700 Toy Hauler (2) '95 GEO Prizms both maroon '99 GMC Yukon '95 Chev 3500, 454 Dually Crew Cab- 145k miles- Wife's Camel trailer puller. '94 Astro- 370k miles '94 Firebird Formula- 5.7L 180k miles- gone- '92 Chevy Lumina Van 3.8L 264k '86 GMC S-15 - 2.8L 154k '87 Buick Park Ave . 187k '86 Buick Park Ave 3.8L 199k miles- gone '77 Chevy Vega- 2.5L 175k miles gone but not forgotten '68 Camaro 396 4 spd RS/SS -72k miles-
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#3
07-14-2012, 07:14 PM
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Re: Intermittant blower motor
Thank you
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#5
08-16-2012, 01:27 PM
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Re: Intermittant blower motor
Defective fan switch in dash was the problem
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#6
08-16-2012, 09:54 PM
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Re: Intermittant blower motor
Thanks for posting the solution. Too often these posts just fade away with no resolution.
__________________
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