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Old 09-13-2011, 02:40 AM   #1
DRAFT1
 
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Default Ac compressor relay location

Can anyone tell me where the AC Compressor relay is on a 1990 D21 4x4. I see a bank of relays on the passenger side fender well LABLED AS FUEL PUMP/MAIN/CHECK/HORN (none labled as A/C). There are 2 more behind the bank (one attached to vacum canister the other screwed to firewall) Also another relay on drivers side fender well between washer fluid container and coil.

So....my questions which would be for AC COMPRESSOR AND what is the "CHECK" relay that is located in the bank on passenger side for. Thanks in advance.
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Old 09-13-2011, 05:00 PM   #2
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Check out this link. I'm sure it shows it in the electrical section of the manual.

http://www.nicoclub.com/FSM/hardbody/d21_truck_1990.pdf
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Old 09-13-2011, 07:55 PM   #3
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Thanks for the info. I feel really stupid about this but my a/c quit working about 6 months ago. I went through the hole Mississippi summer without it. Just read where the fuse for the "cigarete lighter" also controls the push button a/c switch on the dash, which in turn controls the compressor. So............I just replaced the burned out fuse for the lighter and all is well. Just in time for winter
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Old 09-13-2011, 10:21 PM   #4
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Quote:
Originally Posted by DRAFT1 View Post
Just read where the fuse for the "cigarete lighter" also controls the push button a/c switch on the dash, which in turn controls the compressor. So............I just replaced the burned out fuse for the lighter and all is well. Just in time for winter
i wish i had that info earlier this summer bc thats all thats wrong with mine i think
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Old 09-14-2011, 12:00 AM   #5
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Hey, my kind of fix... cheap. Hate, that you had to spend the entire summer without the A/C. Morale of the story is always check the fuse 1st.
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