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Thread Tools | Display Modes |
09-30-2021, 06:26 PM
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#1 |
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Registered User
Join Date: May 2009
Location: Hazel Green AL
Posts: 286
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What purpose is this capacitor at the blower motor?
I am trying to get my blower going on my 79 C10. What is this littlle silver compontant that goes in series with the blower motor wire? What is it's purpose?
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09-30-2021, 07:01 PM
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#2 |
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Registered User
Join Date: Aug 2012
Location: Oklahoma City, OK
Posts: 2,610
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Re: What purpose is this capacitor at the blower motor?
Normally, capacitors like that are for noise suppression for radios. Haven't seen one there except on military CUCVs. Possible a PO added that to get rid of fan motor whine in a CB/Ham rig or an aftermarket stereo setup.
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10-01-2021, 12:31 AM
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#3 |
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Registered User
Join Date: Dec 2011
Location: WA
Posts: 378
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Re: What purpose is this capacitor at the blower motor?
I have the same capacitor on a 78 with no a/c.
perhaps 1. Capacitor smooths out the current if when the motor turns on it draws a spike. 2. Absorb RF interference |
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10-01-2021, 01:01 PM
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#4 |
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Registered User
Join Date: Aug 2011
Location: Miami Florida
Posts: 58
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Re: What purpose is this capacitor at the blower motor?
my 82 does not have one. What does the vacuum ball above it do? I could never figure it out.
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10-01-2021, 02:05 PM
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#5 | |
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Registered User
Join Date: Dec 2011
Location: WA
Posts: 378
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Re: What purpose is this capacitor at the blower motor?
Quote:
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10-01-2021, 04:13 PM
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#6 |
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Registered User
Join Date: Aug 2011
Location: Miami Florida
Posts: 58
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Re: What purpose is this capacitor at the blower motor?
Not sure. Can I tell if the SPID is missing?
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10-01-2021, 06:13 PM
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#7 | |
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Registered User
Join Date: Sep 2009
Location: Beaverton, OR from WA State
Posts: 1,515
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Re: What purpose is this capacitor at the blower motor?
Quote:
__________________
Devin 1983 GMC High Sierra 2500, 4x4, RC/LB, 400 S.B., SM-465, NP-208, Corporate 10 bolt & 9.5" 14 bolt 1996 GMC Sierra SLE 3500 DRW, 4x4, EC/LB, Vortec 454, NV-4500, BW-4401, AAM 925 & AAM 1050 1997 GMC Sierra SLT 1500 4x4, Z71/F44, EC/SB, Vortec 350 My Introduction with my '83s History New Daily, the '96 |
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10-01-2021, 06:52 PM
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#8 |
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Registered User
Join Date: Apr 2014
Location: California
Posts: 975
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Re: What purpose is this capacitor at the blower motor?
I've also seen those capacitors on various square bodies in the junkyard, but not every one of them. Maybe they were limited to certain audio options, like only if you opted for a CB or FM radio.
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