AC Issues
Thread Starter
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Laughing Gas
Joined: Oct 2012
Posts: 872
Likes: 18
From: Jasper, Mn
AC Issues
I took the truck out for a spin, (01 F250) and it was actually warm enough to merit windows down driving. I figured I'd also try out the AC, but no dice, I was just gettin warm air blown into my face.
My first thought is an electrical issue so I'm wondering where I should look? I noticed last weekend when I pulled up the hood to look under there that the AC pump clutch would engage and disengage about every 10 seconds or so. 10 seconds engaged, 10 disengaged, 10 engaged, you get the picture. Didn't think much of it at the time, however today when I was trying to figure out the issue I noticed the clutch no longer engages with the switch in AC or Max AC. I dont think its the switch however as it still works fine for all other positions.
Any ideas?
Thanks in Advance, Ethan
My first thought is an electrical issue so I'm wondering where I should look? I noticed last weekend when I pulled up the hood to look under there that the AC pump clutch would engage and disengage about every 10 seconds or so. 10 seconds engaged, 10 disengaged, 10 engaged, you get the picture. Didn't think much of it at the time, however today when I was trying to figure out the issue I noticed the clutch no longer engages with the switch in AC or Max AC. I dont think its the switch however as it still works fine for all other positions.
Any ideas?
Thanks in Advance, Ethan
Lead Driver
Joined: Dec 2012
Posts: 7,877
Likes: 49
From: Tennessee
Agree ^^^ ck ref. level . Sounds like low charge . Buy a kit with a leak detector dye .. Recharge . then ck for leaks . Or take it to a shop and spend $$$$ to fix . I know , I work at a shop , and fix them for $$$$$ ! Good luck !
Thread Starter
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Laughing Gas
Joined: Oct 2012
Posts: 872
Likes: 18
From: Jasper, Mn
Alright, I'll check that.
I notice I forgot earlier, when it was engaging and disengaging every 10 seconds this was without the switch in either AC position. It was with it on the vents, with the temp dial all the way to the cold side. At the time I vaguely remember getting coolish air out of the vents. Today when I do it I get the warm air.
Does this also point to low refrigerant?
Thanks for the responses. I love this place!
I notice I forgot earlier, when it was engaging and disengaging every 10 seconds this was without the switch in either AC position. It was with it on the vents, with the temp dial all the way to the cold side. At the time I vaguely remember getting coolish air out of the vents. Today when I do it I get the warm air.
Does this also point to low refrigerant?
Thanks for the responses. I love this place!
Lead Driver
Joined: Dec 2012
Posts: 7,877
Likes: 49
From: Tennessee
If the ref. is not at the proper charge you will get mixed results depending on outside temp . Ac pref. is directly related to temp and pressure . Temp affects pressure . Pressure affects temp .
Lead Driver
Joined: Jun 2007
Posts: 7,760
Likes: 27
From: Hampton, Maryland.
The other thing is the air gap on the clutch. It should he around .030 of in inch. There are spacers on the clutch and they wear. If the gap gets too big the clutch won't engage.
https://www.ford-trucks.com/forums/5...ml#post4464164
read Springerpops post in the above thread.
https://www.ford-trucks.com/forums/5...ml#post4464164
read Springerpops post in the above thread.
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Lead Driver
Joined: Dec 2012
Posts: 7,877
Likes: 49
From: Tennessee
The other thing is the air gap on the clutch. It should he around .030 of in inch. There are spacers on the clutch and they wear. If the gap gets too big the clutch won't engage.
https://www.ford-trucks.com/forums/5...ml#post4464164
read Springerpops post in the above thread.
https://www.ford-trucks.com/forums/5...ml#post4464164
read Springerpops post in the above thread.
Good point ! The air gap can usually be adjusted . If too wide 
, clutch assy needs replacing .
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Thread Starter
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Laughing Gas
Joined: Oct 2012
Posts: 872
Likes: 18
From: Jasper, Mn
Its been awhile, but I'm finally done with school, and it rained so we were shut down on the farm for a couple days. Went to charge my AC, hooked it up and it said 55lbs so I'm not low on refrigerant. I also tried to see if my air gap is too big, but following Springerpops posts in the linked thread got me nowhere, compressor still wouldn't engage.
Any more ideas from the great folks around here?
Any more ideas from the great folks around here?
Tuned
Joined: Oct 2011
Posts: 282
Likes: 0
Courtesy of Wood-N-Things and for a 2002 but I am sure most of the info you need would be the same.
If you have a problem with Google Docs, let me know and I will post up a good pdf version.
2002 Superduty Wiring Manual.
If you have a problem with Google Docs, let me know and I will post up a good pdf version.
2002 Superduty Wiring Manual.
Trying to Gain Knowledge
Joined: Jun 2003
Posts: 1,571
Likes: 2
From: Ezzell, TX
Mine ended up being the shim built up material and the clutch wouldn't engage. I pulled the shim and mine has been working flawlessly for 3 years. It is a very simple thing to check. I need to check the links above. If one of them doesn't have the link to what I am talking about, I will find it and post it for you.
I think I saw it above. But here it is again.
http://springerpop.net/F350/air_gap.html
This is what cured my ills with my A/C.
I think I saw it above. But here it is again.
http://springerpop.net/F350/air_gap.html
This is what cured my ills with my A/C.
Lead Driver
Joined: Jun 2007
Posts: 7,760
Likes: 27
From: Hampton, Maryland.
Mine ended up being the shim built up material and the clutch wouldn't engage. I pulled the shim and mine has been working flawlessly for 3 years. It is a very simple thing to check. I need to check the links above. If one of them doesn't have the link to what I am talking about, I will find it and post it for you.
I think I saw it above. But here it is again.
SpringerPop's Compressor Clutch Air Gap
This is what cured my ills with my A/C.
I think I saw it above. But here it is again.
SpringerPop's Compressor Clutch Air Gap
This is what cured my ills with my A/C.
Thread Starter
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Laughing Gas
Joined: Oct 2012
Posts: 872
Likes: 18
From: Jasper, Mn
I did try tapping on the clutch to see if it would engage, but didnt get anywhere. When I get the time I'll dive into the fuses and check to see if the shim has built up crud on it. Its starting to dry up here and we've gotta replace the gear box on the spreader so we can start haulin manure again. Hopefully its a simple fix.
Thanks again for all the great responses!
Thanks again for all the great responses!
Junior User
Joined: Feb 2009
Posts: 96
Likes: 0
From: Palm Springs, CA
I'm having the same issue, compressor not working. I checked my pressure on the "low side" and it's 100psi!!! How would it get so high on it's own??? I'm in Palm Springs and absolutely melting! If I can't fix it today or tomorrow it's off to a shop on Monday.... ugh