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Thread Tools | Display Modes |
08-04-2021, 12:53 PM
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#1 |
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Registered User
Join Date: Jul 2017
Location: Utah
Posts: 35
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AC clutch wire harness
When I was replacing the AC compressor I noticed what appears to be a resistor jumper between the wires on the clutch wire harness. Do they all have this or was this a "special modification" made by a PO?
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08-04-2021, 12:57 PM
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#2 |
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Mr. Cheyenne
  
Join Date: Jun 2020
Location: Kyle, Texas
Posts: 1,643
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Re: AC clutch wire harness
might be a diode, to keep voltage from flowing back in the wrong direction?
__________________
Richard '72 Chevy C10 Cheyenne *Super WHT/MED BRONZE/WHT SBC 350 | TH350 | LWB | AC | Buddy Seats Upgrades: Tilt | Front Sway Bar | Radio | Sliding Window | Bed Spare w/Lock Bed Rails | Full LEDs | Courtesy Lights | Tachometer | Glovebox Lock & Light | Head Light Relays | *Upgraded Fully Super Trim |
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08-04-2021, 01:26 PM
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#3 |
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Senior Member
Join Date: May 2010
Location: Wisconsin & Arizona
Posts: 4,839
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Re: AC clutch wire harness
My '69 has one, and it's pretty crude. If I recall correctly it was just wrapped with electrical tape from the factory.
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Jim |
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08-04-2021, 02:14 PM
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#4 |
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Who Changed This?
Join Date: Jan 2013
Location: Simi Valley, CA
Posts: 10,101
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Re: AC clutch wire harness
Yes, it is a diode. It prevents the surge from inductive kickback from the clutch disengaging going back up the harness.
__________________
~Steven '70 Chevy 3/4T Longhorn CST 402/400/3.56 Custom Camper Simi Valley, CA |
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08-04-2021, 02:44 PM
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#5 |
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Registered User
Join Date: Jul 2017
Location: Utah
Posts: 35
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Re: AC clutch wire harness
Great, thank you for the confirmation. PO (my father-in-law) was an electronics technician decades ago and made several interesting "enhancements" to the truck that I'm still trying to decipher.
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