Ford Super Duty (1999-2016) :: 2007 E450 - AC Compressor Constantly Cycling
May 20, 2017
I have a 2007 Ford E450 Superduty Box truck with a V10 and 70,000 miles. For the 6 years I have owned it, the AC has always been ice cold. This summer it will not blow cold under any driving situation.
When the AC is on AC, AC max, or defrost, the compressor clutch constantly engages for 1.5 seconds then disengages for 5 seconds. I bought a can of refrigerant and added only about 1/4 of it to reach proper psi for the current temperature.
If I remove either the high or low pressure switch clips, the compressor stops engaging. Is it possible that one of the switches has failed in that it is activating at an incorrect pressure? Unfortunately our local Ford dealer here is notoriously devious and while they may fix the problem, I will probably have an entirely new system by the time they are done.
I've ruled out coolant, air gap does not seem to apply and both hi and low pressure switches are active. What am I missing?
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I have a 2001 ford f350 v10 dually. about 2 months ago it blew a plug out and i had it fixed and shortly after it developed a starting issue. It starts fine for a day or so then after it sits for a day it wont start without out cycling the key 5 to 10 times....It cranks fine just wont try to start or even sputter....took to a shop that replaced my jem Module and he had it for a week and only one time did it not start. I drive it home and it sits overnight and wont start the next day. took it back and he couldn't find out what is going on.
Its has started and ran just fine no issues once its running but shut it off for a couple hours you got a chance it wont start. I've eventually got it to start every time so far. The shop said my fuel pressure was 40 psi but would go down after it sat to about 10 to 20. The one time it did not start for the shop they said it had no fuel pressure but then he just cycled the ignition a few time and it started. What to check that would be normal like the fuel pump or relays and fuses. I should say early this year around jan feb it had the starting issue once and thought it was due to a autostart that was installed before I bought it and so got it going and just removed autostart when started having trouble with starting.
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With the few hot days we have had here lately, I have noticed that after about a minute the AC will go warm and I will have to rev the truck up when it does to get it cold again. It seems the compressor is disengaging. I noticed that the condenser has a big gash with a tube ripped open on top. I know it needs to be replaced, but could that be causing the compressor issues? It's a 2003 7.3L.
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Ok AC wasn't working took it to a mechanic told me the the compressor was missing a clutch he recommended i put a new compressor. Is it possible just to put a new clutch in it and if so do i have to remove the compressor to put the clutch on it.
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2003 V10.. Can I replace the AC compressor clutch with out pulling the compressor out?
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I am not sure which it is but I cannot turn the pulley by hand. How do you tell if the pulley is bad or the whole compressor? I went out to start the truck and it wouldn't start. It died so I restarted it and then I seen the smoke from the front of the truck. I opened the hood and the flipping belt was just hanging there. Is there a way to just bypass the unit for now? I wont be needing the AC till summer and that is several months away.
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Trucks compressor kicks on and off and won't stay on no cold air at all do i have a leak ? The truck came whit a new canister that mounts in front of the air box could it be that?
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Of course my freon all leaked out of the AC compressor and it is squealing pretty bad. I did not want the serpentine belt to break due to a seized compressor so I looked for a bypass pulley kit. Naturally they make one for both gas engines, but not for the diesel. So out comes the string and sharpie, and trips to 2 different auto parts place to get the correct length belt after trying several that were too short. It's 103 inches (8 groove) for future reference to bypass the ac compressor and upper extra pulley. 7.3 diesel.....
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Got a 06 F250 V8 Gas. Went to turn AC on the other week & got warm air out vents. Put 1 can of 134 in & the gauge on the "kit" said it was in the green. It was working last summer. You can turn the compressor "face" so it's not locked up, but it's not kicking in. Swapped the replay with another one & the 10a fuse in the fusebox under the steering wheel is good. Is that the only ones? I find it hard to believe that it's something serious. We did change the belt a few weeks ago & I was hoping that we had pulled a wire loose. The vacuum line that plugs into the heater hoses is plugged in.
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I have a 2001 F-350 S/D w/7.3. Question is... Is it possible for the mode switch ( one controls floor/ defrost and A/c ) to not function or should I say leave the a/c on even if it is not in a/c position? What I have noticed was that when it is in the floor mode or the vent mode (not the floor/vent) the compressor does not come on. When it is in vent/floor or either a/c modes it does. Is this normal... I don't think so though I do know anytime the a/c is switched on compressor should come on but no time without a/c being on.. Maybe I'm wrong
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1999 F250 SD 5.4 with 140k miles. There is a triangular plate with a bolt in the center and and what looks like a bolt in each corner of the plate.
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I need diagnosing why my A/C isn't working. I'm wondering if my clutch staying engaged has burned up my compressor before or after my clutch went bad. I don’t think it’s the air gap issue because I took my clutch off and checked and there were zero washers. I guess somehow I re-installed it with no washers maybe the last time I fooled with it.
I've only knew to check the air gap trick and when that didn't work, I wasn't sure what my next step could be. I tried looking at the high side pressure switch connector to see if it was burned up and it looked ok.
Can track down if my compressor is still good and replacing my clutch is the only thing I need to do or if I need to replace my compressor? Or if there's something else that's totally unrelated that I need to check?
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Need to replace the ac compressor bearing/pulley on my 2001 f350 7.3. My question is do I need a special tool like a pulley puller or is there another way to remove pulley? I already have the clutch assembly removed as well.
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