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06-06-2016, 12:34 PM
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#1 |
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Registered User
Join Date: Aug 2011
Location: Lethbridge Montana
Posts: 259
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blower fan cuts out on high speed setting
Hi everybody i am having an issue with a 1984 gmc jimmy
The blower fan works but cuts out when turned to high speed setting The blower motor resistor has been replaced and the fan relay any help on this would be appreciated greatly Thank You |
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06-06-2016, 01:13 PM
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#2 |
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Registered User
Join Date: Jan 2013
Location: Newalla, OK
Posts: 600
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Re: blower fan cuts out on high speed setting
had this happen to my K10 after fatmat and new seals, had to crack the window before it would work on high.
How is your interior? |
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06-06-2016, 01:20 PM
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#3 |
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Master Hater
Join Date: Apr 2006
Location: Temple,Tx.
Posts: 402
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Re: blower fan cuts out on high speed setting
Bad fan switch? The resistor is bypassed on High.
__________________
1997 C1500 ECSB 4.3/NV3500 8.5 3.42 "This evening, all of you bleeding hearts... why don't just go ahead and hug yourself for the next 20 minutes or so, because there's a really good chance you're gonna be offended".- Captain Owen Honors |
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06-06-2016, 04:17 PM
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#4 |
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Registered User
Join Date: May 2004
Location: warner robins ga
Posts: 158
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Re: blower fan cuts out on high speed setting
take your level that controls your air and heat and move it over just lil towards heat. just a tad bit.
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06-07-2016, 05:30 PM
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#5 |
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Registered User
Join Date: Jul 2007
Location: Tucson, AZ
Posts: 3,188
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Re: blower fan cuts out on high speed setting
Remove hvac control assembly from the dash and operate the control with the engine on. Wiggle the connector at the back of the hvac control and see if it will operate correctly, at least momentarily. If you can get it to work this way, then buy a new short harness with connector - they are still available from the AC Delco pigtail catalog. The connector/harness dries out over time and will not keep good contact with the hvac control.
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