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A/C relay?

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Old Aug 21, 2006 | 06:21 AM
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A/C relay?

Where can I find an A/C relay on a '87 4runner 22re? The comp. clutch only comes on if I attach the wire from it to 12V. I tried jumping the low pressure switch and it did not work. wiring diagram shows a A/C cut relay but does not say where it is.....Thanks in advance...
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Old Aug 22, 2006 | 06:02 AM
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o.k. then.....I guess nobody ever needed to find the A/C relay
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Old Aug 22, 2006 | 09:05 AM
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On my 92 it is on the top of the valve cover. Should have 2 vacum lines comming off of it. One of them going to the AC idle up adjustment screw. Look for a big white (cold be black) plastic screw on the drivers side of the valve cover and follow the vacum lines to the VSV for AC.

you can do a search on here and find 9 million post about AC alot of them with pics. Search is your friend
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Old Aug 22, 2006 | 11:41 AM
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Ok I never really found the relay but I did fix the A/C. I was behing the glove box tracking wires and I saw the plug to the A/C amplifier was unplugged. I plugged it in and nothing happened. The 4runner was idling a little low so I turned the knob on the A/C amplifier counter clockwise until compressor kicked on. I then idled the RPM up under the hood. Now I just need a vac. and refill.....Thanks
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Old Aug 23, 2006 | 12:29 PM
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A/C relay is in the center of the dash, passenger side of the center console.
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Old Jul 4, 2010 | 05:50 PM
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I also have an 87 4runner and my a/c won't come on at all, can someone tell me where the low pressure switch is, that sounds like a good next step. The fuses that I can find look good but I havent been able to locate the one in the center of the dash yet. The light comes on in the switch. Thanks for any ideas you might have.
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Old Jul 5, 2010 | 12:08 PM
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Originally Posted by wristpin
I also have an 87 4runner and my a/c won't come on at all, can someone tell me where the low pressure switch is, that sounds like a good next step.
See below:
- http://www.4crawler.com/4x4/CheapTri...ne_Pix/20.html
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Old Jul 8, 2010 | 07:54 AM
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How many amps is the stock Toyota 22RE AC relay? I need to add a relay for my OBA project and was curious what size to use. Also, I wanted to wire it up so it only can be turned on when the ignition is on.

What would be the easiest way to wire this with a switch in the cab to turn the compressor on & off?
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Old Jul 8, 2010 | 06:29 PM
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Thanks 4Crawler, that is exactly what I needed. I just came across this thing, its in great shape but I have some of the odds and ends to fix.
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Old Apr 12, 2025 | 01:11 PM
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Thanks

Originally Posted by DixieJoker
Ok I never really found the relay but I did fix the A/C. I was behing the glove box tracking wires and I saw the plug to the A/C amplifier was unplugged. I plugged it in and nothing happened. The 4runner was idling a little low so I turned the knob on the A/C amplifier counter clockwise until compressor kicked on. I then idled the RPM up under the hood. Now I just need a vac. and refill.....Thanks
im naming my kids after you, this fixed my ac
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