Ford A/C :: 1997 E350 Van Won't Start With Compressor Clutch Plug Unplugged
May 22, 2014
Troubleshooting the not working A/C in my 1997 Ford E350 Motorhome Chassis.
1. Compressor clutch spins freely
2. Started vehicle and turned on A/C, clutch not engaging
3. Unplugged Compressor clutch plug, and engine would turn over but not start
4. Replugged, started engine (normal), and when I unplugged the compressor clutch plug, the engine immediately cut-out.
Is this normal? I was planning to check if I had 12v at the compressor plug. Did I miss something? It is almost as if the clutch is wired into the ignition circuit...
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I'm in the process of replacing the engine in my 97 E-350 Chateau 6.8 v10. The a/c system was in need of attention before my engine exploded at 143,000 miles. The a/c system at that time was showing signs of impending compressor failure. Many parts of my a/c system were removed to facilitate engine swap so it is completely evacuated. I'm replacing the compressor, accumulator, both expansion valves and flushing the rest of the components outside of the vehicle.
I have purchased all the replacement part but have questions on the proper sequences of events replacing the PAG 46 into the system. My a/c system calls for 13oz of oil and 64oz coolant and I did not measure any oil that was lost during removal. I have access to a vacuum pump and a/c gauges. I have been searching the internet yet haven't found a site that deals specifically with my circumstances. I'm eager to learn.
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I have a 01 f150 4.2L and a while ago the ac compressor clutch broke. I didn't catch it in time and the stress it caused on the belt broke the power steering pump pulley. So I replaced the steering pump and pulley and the compressor the accumulator/dryer and the office tube put the 134a back in and everything worked fine. three months later ac stopped working. I figured the condenser was bad so i replaced it. Charged it up still no cold ac. so i thought maybe the manifold that goes on the compressor was clogged so i replaced it. While I did that i said to myself well i should tear out the dash and replace the evap as well. so just about everything has been replaced on the ac system.
Aside from the cycle switch and the high side switch witch from my test both seem to be working. now here is the thing. the tube witch holds the office gets ice cold then goes to the evap but the suction line coming from the evap doesn't get cold and the ac blows warm air. this very problem is what convinced me that the evap was clogged and needed to be changed witch is why i undertook the task of tearing the dash out. in all it took 14 hours to do the whole job. now for the pressures that i get from the ac manifold low side goes 40 down to 20 ..... this is normal. high side is a little high. I charge it to 125 still no cold air. so i dump a little more 134 in. at 90 degrees high side pressure should be around 200ish i get it there still no cold air. I have just about replaced everything i can think of.
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Twice I've come into the garage and (after getting over the shock of seeing a new PiP) heard a fairly faint buzz or hum seemingly coming from the car. At first I thought it was the fluorescents overheard, but after turning them off and walking around the Prius I believe it to be coming from the rear of the car. (Next time it happens I will go find my old stethoscope and better localize.) The car was off and not plugged into the mains. I got in and hit the power, and the sound quit.
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soo a friends 03 f-150 w/ the 4.6 has noticed the a/c compressor clutch engaging while heater is on. clutch engages for about 3 seconds or so and kicks back out consistently but only w/ the heater on. a/c dose function property when using a/c functions... Is this normal or does something need serviced???
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I bought a new Prius PIP 2012 ten months ago. I park it in the Airport parking lot a day or two when I am out of town. And this is the 3rd time my car is completely discharged.
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My 97 regal has a noise from the compressor clutch. It goes away when the a/c is turned on. Mechanic said its the clutch assembly. Is this easy to change? What causes the noise to go away when the a/c is turned on?
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I have a 1997 Ranger with a 3.0 v6 with a super high idle.
It idles at 2500 RPM when the IAC is plugged and a steady 1100 when unplugged. I have replaced the IAC twice now (dropped the first replacement. long story) and and have also checked for vac leaks with no results.
After about 2-3 minutes of idling at 2500 on a cold start it will drop down to 1100 (same as when IAC is unplugged), but after a 10 minutes or so drive it will idle steady at 2500 with minimal if any dropping in RPMs. This is driving me crazy not only because it sounds horrible but also because of the fact it's burning through fuel like it's going out of style.
I have checked the MAF sensor and it looks brand new (not the original owner) along with the O2 sensor. I have been meaning to check the TPS voltage to see if it's working correctly but without a working multi-meter it's making it difficult to do anything.
I'm at a loss with this right now and because of all the previous repairs i have done to it and the others that still need to be done i don't have the biggest budget to fix this problem nor the money the truck is using in gas.
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Well I went to have a guy at work scan my truck to see why my o/d light is flashing His scanner wouldn't connect so I unhooked my ts chip still wouldn't after that Now with the chip unplugged. I can't start with it on I can't start...
My cel is on and my theft light just blinks. My wait to start never comes on but my glow plugs do start up and warm up. All I have is cranking but that's it?
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Last weekend my number 4 spark plug blew out while on the highway. The truck stayed on long enough for me to get off the highway and pull over before it died. I towed the truck home. Last night I repaired it with a helicoil and replace the spark plug and coil. Now the truck cranks but won't start. I noticed that my theft light flashes fast and doesn't stop after a few seconds or during cranking. I still haven't tested relays or fuses because it was late after the repair. I will be checking those tonight.
I will be reading and taking suggestions and posting my results tonight while I'm working on the truck. I will be checking the fuel pump and PCM relay tonight. I will also try 2 different keys and checking the Inertia switch on the fuel pump to see if that tripped. The truck is a 2001 F-150 Lariat Supercrew with 150k miles on it. 5.4 liter engine.
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My issue started as simply a lack of air conditioning. Upon initial inspection I noticed that the compressor clutch is not engaging when I turn the ac on. So I figured the next step would be to see if I am getting voltage to the clutch. My Chilton book says to test this with the truck on, so I disconnected the harness from the compressor, attached my meter to the cable, and attempted to start my truck. I've found that the truck wont start with this cable disconnected. It will turn over but just never starts. Also the fuel pump comes on as it should.
I've repeated this several times. It always starts with no problem when the compressor clutch is connected. I understand that there is some monitoring circuit with the pcm so maybe that has something to do with it but I'm pretty fuzzy on how that works. Upon further inspection, it looks like I should be able to test my ac signal with the engine off, so maybe that's not such a big deal, but this whole truck not starting business is blowing my mind.
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I have a 2000 F150 XLT 5.4L truck. I noticed the AC went out about a month ago and since then I could hear the AC/Clutch bearing making noise. Well I went to start it the other day after eating dinner out and it wouldn't start. It sounds like it wants to start but it just doesn't have enough umph. I replaced the starter and charged the battery up to 100 percent. It still won't start.
If I take the belt off it will start and I checked the AC/Clutch and I can move it with my bear hands. I tried disconnecting the AC/Clutch fuse and relay but that didn't work. Is it possible that the Clutch is freezing up when I try to start it?
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1997 Ford Econoline HD Club Wagon E350 2wd 250k 6.8l V-10 Factory front and rear air, rear evap is there but all other components were removed from previous owner to use as a work van.
Air works great other than at idle it warms up some, not a real big issue at the moment, and also has a small vac leak somewhere as under heavy throttle or towing any bog will change vents to defrost and floor. not a big deal at the moment.
My issue right now is I was driving yesterday down the interstate air on full blast freezing me real good (awesome at speed on these 100 degree days in NC) and all of a sudden ambient air, no more awesomeness.
I pulled over to take a quick look but was way too hot to sit on the side of the interstate and look further, got the ole girl home and looked at it today.
Compressor kicks on as it should, but all the lines stay the same no condensation, blend door is moving to adjust from any vents the control tells it to.
My question is if it was low on freon the compressor wouldnt kick on at all, and if its up and cycling correctly why aren't the lines becoming cold? the temp door is also working as with the van warm the air will blow hot then when i switch it back to cold it gets cool just not cold, temp of air around blower.
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I just purchased an 97 E350 (15 Passenger) and I notice that the two rear heater lines (along the driver side) are rotted and is showing sign of minor leakage. Can I simply replace them with rubber heater hoses or do I need to get the factory heater lines?
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I am just about committed to purchasing a 1997 Ford E350 extended cargo van with the 5.4. The transmission shifts through all the gears nice and firm (reverse also works). The only issue with the van is the column selector lever is very hard to move between the entire range of PRND21. It also does not "click" into the selected positions, you have to just line up the pointer to the desired gear selection.
Is this a complete deal breaker (internal transmission issue/replacement necessary) or, is it something relatively simple (such as a worn selector cable). The owner did admit the van has been sitting for sometime. It has 134,000 miles on it.
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So clutch doesn't engage and compressor is not running. I have 12-13v at the low pressure switch and the same at the high. When I jump the low pressure I don't get any voltage at all at the plug that controls the relay for the clutch.
Where I'm confused is:
Is this a low pressure problem - gauge is reading 60psi on the accumulator
Or
Is this electrical somewhere?
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I just picked up a '94 7.3 IDI Turbo, and I can't figure out what ails the AC. It appears that there should be enough refrigerant (according to my recharge kit), but the compressor clutch will not engage. I have checked the fuses, and all are fine. All other HVAC functions are normal. Is there a way to test the compressor?
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I have a 2002 F250 on which the AC compressor clutch is not cycling: I have checked and added coolant so low pressure is correct (don't have high pressure gauge). I checked the clutch air gap and it is at 0.030 " as specified in another post. I replaced the low pressure AC cycling switch (on the evaporator/dryer). With the AC on, I disconnected the AC cutoff switch and the clutch disengages. This circuit has the correct (>10V) going to it. I am thinking it could have something to do with the AC relay.
When you switch the ATC to a setting other than AC or Max AC, the clutch disengages fine. I noticed this problem because the AC shuts off when it is really hot, after I have been driving for a long while, about 1 hour or more. If you shut off AC, wait a few minutes, then turn on it works fine.
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He has a 96 explorer and his ac compressor clutch was cycling on and off. So he went and bought 2 20 ounce cans of 134a and proceeded to add it to the evaporator service port. Of course a lot of it sprayed out side of it as it did not fit well (duh). So he has no Idea how much he actually got in there out of the 30 or so ounces he dispensed. He is laughing at himself with me on this. He says hi ahead of time
I have access to good gauges and a reclaimer and vacuum as I work sometimes for a residential ac guru. So what to do? I was thinking the evaporator should be changed out but I want a second opinion. Then vacuum and add new 134.
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Says A/C Compressor Clutch Circuit open. A/C blows hot air....go to VENT and the EATC controls the temp fine (ambient air only). It's on a '97 Lincoln Mark VIII if it makes any difference. Pulled code # 1530 ...
Clutch does not engage but the compressor does turn. Also the EATC will NOT go into the test mode. Push OFF and Floor at same time, then AUTO within two seconds. Nothing. Is this a clutch gap problem? New clutch was installed about a year ago.
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I have a 94 Ranger with 2.3L motor. Last week my ac quit working. I push the in and the ac light goes on, but the compressor clutch won't engage. I changed the relay, but that didn't work. The fan still works, but the ac does not come on. I tried banging on the compressor pulley, but that didn't do anything. The clutch is not frozen -- it spins freely. The connector looks good and I haven't done any work in the engine compartment so I couldn't have accidentally moved any wiring. What I might try or is my compressor simply dead?
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