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04-10-2010, 10:35 PM
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#1 |
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Registered User
Join Date: Mar 2010
Location: Piedmont, AL
Posts: 49
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A/c compressor kicks on/off.
I'm trying to recharge my a/c system on an 87 4x4. I crank the truck and turn the a/c on max but the compressor just kicks on and off every 10 seconds or so. I read something about if the system was empty you might have to jump it or reset the ecm. I'm going to atleast try and reset the ecm in the morning but I don't Know about straight wiring it. Any and all help is appreciated.
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04-10-2010, 10:58 PM
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#2 |
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BMW & ASE Master Certified
Join Date: Feb 2004
Location: Houston, Texas
Posts: 1,261
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Re: A/c compressor kicks on/off.
you would have to jump the low psi switch/connector on the side of the accumulator. grab a paper clip and remove the connector and insert paper clip. now the system thinks theres enough psi to close the switch. thus allowing you to fill the system.... i dont remember having to do that, but sounds like you might have to...
__________________
1987 Silverado - L83 5.3 w/ 6L80e ,A/C,P/W,P/L,TILT, HID projectors, Wilwood C-10 Pro Spindles w/ 2018 silverado front brakes & C-5 Corvette Rear Disc Brakes 1999 BMW 528i - 5.7 LS1 w/ 4l60e, Ford 8.8 IRS w31 spline posi & FX-r projector retrofit New project: 2006 BMW x5 6cyl AWD to L83 6l80e 4wd to 2WD / RWD A poor man buy's it twice finally got my domain name back, 87chevy.com.... site rework in progress |
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04-10-2010, 11:06 PM
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#3 |
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Registered User
Join Date: Mar 2010
Location: Piedmont, AL
Posts: 49
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Re: A/c compressor kicks on/off.
Thanks. Ok which wires do I jump to which? Also it's the little black-flat plug on top of the compressor, right?
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04-11-2010, 04:46 AM
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#4 |
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Registered User
Join Date: Apr 2010
Location: Everett, WA
Posts: 504
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Re: A/c compressor kicks on/off.
You have to jump the switch connector on the side of the accumulator, not the one on the compressor.
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04-11-2010, 09:38 AM
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#5 |
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Registered User
Join Date: Mar 2010
Location: Piedmont, AL
Posts: 49
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Re: A/c compressor kicks on/off.
The accumulator is the silver cylinder looking thing on the passenger side around the heater box, yes?
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04-11-2010, 09:54 AM
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#6 |
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Registered User
Join Date: Mar 2010
Location: Piedmont, AL
Posts: 49
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Re: A/c compressor kicks on/off.
What color wires do do I jump to each other?
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04-11-2010, 05:23 PM
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#7 |
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Registered User
Join Date: Mar 2010
Location: Piedmont, AL
Posts: 49
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Re: A/c compressor kicks on/off.
Ok I figured it out. It's the ones circled in red. Thanks
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04-11-2010, 06:30 PM
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#8 |
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Happy to be here
 
Join Date: Mar 2000
Location: Cypress, TX
Posts: 39,023
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Re: A/c compressor kicks on/off.
You got it.
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Follow me on Facebook and Instagram @N2trux.com Articles- "Jake" the 84 to 74 crewcab "Elwood" the77_Remix 85 GMC Sierra "Scarlett" "Refining Sierra" |
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04-11-2010, 06:32 PM
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#9 |
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Senior Member
Join Date: Sep 2005
Location: Lewisville, Nc
Posts: 10,230
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Re: A/c compressor kicks on/off.
jump the one in red and charge to about 35 psi on low side and 175-230 on high side if you are using gages
__________________
David fuller Ase Certified Mechanic Click here to help support our board!! 1971 Chevy c-10 under going a 4.8l LSx swap Build Thread http://67-72chevytrucks.com/vboard/s...d.php?t=421305 2007 Honda Accord my daily 145kmiles 2002 Honda Accord 4 door With 330k(sisters car) 2005 toyota Avalon 228k( brothers car) 2002 Sububran 5.3 245k 2000 Tahoe 5.3l 378 General manager for Marco's Carwash & lube |
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