Air Conditioner Troubleshooting
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Elder User
Joined: Oct 2009
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From: Chesapeake
Air Conditioner Troubleshooting
Friday my air conditioning seemed to work fine. Yesterday I finished up replacing the majority of my vacuum connections. In the process of routing things, I unplugged and reconnected the connector shown the the photo (image is not my truck); this is the only change I made to the ac system that I am aware of. Last night during my test drive my air conditioning never cooled at all. I checked the vacuum repair to my blend door actuator and it appears to function correctly and has vacuum. It appeared that while my AC clutch pulley was turning, the clutch was not engaged as it should be with AC on.
Need help trouble shooting the AC compressor I guess? Did I cause this or is it just coincidence?
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Elder User
Joined: Oct 2009
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From: Chesapeake
I jumped ac clutch off the battery and it engaged. Checked fuse it was fine visually but replaced it anyways. I am not detecting any volts to the wire that plugs into the ac compressor clutch
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Joined: Oct 2009
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From: Chesapeake
Yes, it is fixed and which line? Its been a mix of windshield washer/vacuum line, braided transmission cooler and heater core lines; frankly like the braided stuff a lot more but it costs more. Can't track cost though on a project like this, you'll never start it. The low pressure switch leaked for a quick second say the 2nd thread when removing switch and the 2nd to last when tightening (same spot). No big deal on that, "AC Blow Cold" now!. As far as vacuum goes I have the short piece of line to that transmission controller thing and the line from the cruise control module to the pressure release on the brake pedal assembly left for tomorrow afternoon.
To troubleshoot the switch, remove the pig tail. On the pig tail jump the two pins, if the AC begins to blow cold you've either got a bad switch or maybe low pressure in you ac system. I'm sure there are smarter things to do line verify voltage and check resistance but I'll gamble 12.99 (auto zone) on a switch to save that head ache and amount of questioning on here.
To troubleshoot the switch, remove the pig tail. On the pig tail jump the two pins, if the AC begins to blow cold you've either got a bad switch or maybe low pressure in you ac system. I'm sure there are smarter things to do line verify voltage and check resistance but I'll gamble 12.99 (auto zone) on a switch to save that head ache and amount of questioning on here.
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Jump those pins if you ever have to charge it from really low charge. It runs continuously when jumped and takes a charge much faster. It runs very briefly when low.
Glad you got it fixed.
I asked about the vacuum lines 'cause I keep hoping someone will come up with original style replacement vacuum lines.
Glad you got it fixed.
I asked about the vacuum lines 'cause I keep hoping someone will come up with original style replacement vacuum lines.
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4wd Low
Joined: Oct 2017
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Jump those pins if you ever have to charge it from really low charge. It runs continuously when jumped and takes a charge much faster. It runs very briefly when low.
Glad you got it fixed.
I asked about the vacuum lines 'cause I keep hoping someone will come up with original style replacement vacuum lines.
Glad you got it fixed.
I asked about the vacuum lines 'cause I keep hoping someone will come up with original style replacement vacuum lines.
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Joined: Oct 2009
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From: Chesapeake
So at work (I am an engineer) we were trying to take a silicone hose and make it 90 degrees, so here is what I did: Take wire approx. the ID of your hose and bend it to the shape you desire. Your bend must have a radius though. Now slide your hose on the wire and heat it a heat gun, a lighter may work but you’re more likely to burn your hose. After it cools, and with a little luck, once the wire is removed the hose should hold its new shape.
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