Ford A/C :: 1990 F250 - Compressor Runs But No Cold Air


Dec 26, 2010

My 1990 f250 a/c has freon, and the compressor runs when i turn on the a/c but i get no cold air.

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Ford - F250 :: 1990 - Whistling Sound From The Rear When Cold

I have a 1990 F250 4x4. Whenever its below freezing outside, I get this whistling sound coming from the rear of the truck at very low speeds, like when I'm slowing down to stop at a light, or when I'm turning a corner. Pressing either the break or gas pedal seems to make no immediate difference in the sound. I took it to my mechanic, but it wasn't cold enough that day for him to hear it. But he did say that it is probably just that the rear differential needs servicing. Okay, so I drained and replaced the differential oil and gasket myself the next weekend. Next cold day came around and the whistling is still there.

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Ford 7.3L Power Stroke (1999-2003) :: 2002 F250 Runs Rough When Cold

I have my 2002 Ford F250 Powerstroke. 175,000 original miles by me and only me. SCT, MBRP, Howes or Stanandyne almost always. Runs like new. It starts rough if I don't plug it in. Even on 50 degree days. Then it levels off and runs perfectly. If I plug the truck in I can drive off immediately with perfect operation of motor. I just went 1500 miles. Pulling a car hauler with car. NP at all.

New Glow Plugs, GPR "Yes it works", IPR, New Harness, Buzz Test shows it's fine, New #8 injector last year, New O rings HPOP. My buddy who is a PStroke guy said this trucks runs too perfect for it to be injectors. He recommends seals for the injectors. What does this mean. Or what else can it be. Where should I start.

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Ford 7.3L Power Stroke (1999-2003) :: 2002 F250 Starts And Runs With Rough Idle For About 10 Seconds When Cold

I have an issue with my 7.3.... the truck will not start if it sits overnight without being plugged in, even in 65 degree weather. It starts and runs with a rough idle for about 10 seconds after its been plugged in for an hour, after the rough idle is gone it runs great .. it will Stat back up as long as the truck is warm (70+).... I've replaced the batteries, glow plugs, starter (it was going bad) and fuel filter. .. also replaced the gpr today. ....

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Volvo - V70 :: 2001/ 24T Vehicle Runs Smooth When Cold / Runs Rough With Delayed Acceleration On Warm Up

My 2001 V70 24T runs smooth when cold as it warms up it runs rough with delayed acceleration reaction ....

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Corolla :: 1990 - Radiator Fan Runs Always With Key On?

the radiator fan runs always with key on. Since it is driven only up to 10- 15 miles and Honolulu is warm I haven't been too diligent in finding the problem. Will it wear the fan motor out prematurely (110 K on engine)?

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Ford Excursion :: AC Line That Runs From The Back Of Compressor Is Leaking

I think the top AC line that runs from the back of the compressor is leaking on my '01. It looks straightforward to replace, but I don't have any way to evacuate or recover the R134a refrigerant. Is this something that an AC place has to fix, or is there a way to do this on my own?

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Volvo - 240 :: 1990 - AC Compressor Not Cutting On

1990 Volvo 240. The ac doesn't work and about 6 yrs ago it was converted to r134a. How can I check it see whats wrong?

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Ford Wiring/Electrical :: 1996 F150 - AC Runs And Then Cuts Out / Compressor Not Turning

Have and intermittent condition with my 1996 F-150 4.9. AC runs and then cuts out (compressor not turning). I lose 12v to both side of high side switch. I tried to troubleshoot using a schematic in Haynes Foprd Pickups and Bronco for 92 and later F-Series/Bronco, but the color code for the wiring doesn't match up.

On my truck, there is 2 wires from the low side pressure switch which mates to a socket with only 1 wire. I have 12 volts at switch terminal on dash control, and it seems that I have an broken wire behind the dash, as I can get it to operate again when I move the harness around. Where can I get a schematic of this part of the circuit?

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Toyota :: 1990 - Truck Radiator Runs Dry All The Time

I have a 1990 Toyota pick up and, even though I have had the radiator removed and tested twice for leaks, I still loose fluid. I drive 30 miles - after having filled the radiator to the top - and then find it empty. The overflow radiator fluid bottle is always full to the top but the radiator will not stay full. My radiator man has told me to place a large piece of cardboard under the car to see if there are any leaks - there are non. I pay more in coolant than I do in fuel!

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Ford Super Duty (1999-2016) :: 2004 F350 - Compressor Runs All The Time?

I just brought home an 04 F350. It is a V10, 6 speed, with 30,600 verified miles on it. It runs and drives fantastic, and that V10 is impressive! I am very impressed. I have noticed that the compressor cycles, even with the dial in the off position. Is this normal for the super duty, or is something amiss? If something is wrong, what direction do I look in?

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Mazda - Miata :: 1990 - A/C Not Working - Change Compressor?

I have a 1990 Mazda Miata, and the AC is not working. It has been switched over to R134a. I took it to a mechanic to have it recharged a few weeks ago. He said that one of the o-rings was cracked and so it was leaking around that. He filled it up and put some stop leak in it and for awhile it seemed to work fine. Then it stopped blowing cold air. I took it to a jiffy lube just to have the level of coolant (correct term?) checked. The person there told me that it was very low and was leaking around the valve stems. I tightened the valve stems and re-filled it. After 24 hours it had stopped blowing cold air again. I got a price quote on a new compressor and it is about $500.

So - my question is this - should I just put a new compressor in or is there something cheaper I could try first?

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Chevrolet - S-10 :: AC Compressor Runs, But The Air Is Not Getting Cool

The A/C is not working in my 2002 S-10. Currently the compressor runs, but the air is not getting cool. I tried adding freon, but it has not worked. The low side pressure is about 50 psi, and would drop a few pounds when the compressor is started, but it drops no further. I have not noticed the compressor cycling while it is on. The can of refrigerant is not empty, but the system does not seem to be taking any more from that can.

Do I just need to add some more coolant from a fresh can, or is something else at work here. Also, probably unrelated, when down shifting it is fairly common for the air to switch from blowing up front to blowing on the defrost.

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Golf IV / Jetta IV :: When AC Is Switched On, Compressor Runs Without Going Off

In my 2001 2.0, my AC has been blowing hot air for a while now. It was intermittent at first but now is constant.

The compressor runs without going off when the AC is switched on. I can tell because I see the compressor clutch engaged and spinning.

I tested with AC manifold gauges and these are the readings I got.

Engine off : Low is 0, High is 135

Engine on, AC on full blast after running 10 min at 1500 RPM:

Low is 4, High is 135

Looks pretty bad.

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Chevrolet - Caprice :: 1990 - AC Compressor Exploded / Front Seal Of Transmission Is Leaking

So I am on my way home after an honest 8, and I make it a mile down the road and goose the old girl a little off a stop light. Well next thing I know we have smoke rolling out under the hood, well it turns out the "smoke" was r134 refrigerant. The guy that recharged it said that the compressor failed and that its common with retrofits because 134a runs at a higher pressure.

Now I don't need a/c, and I might just leave it as is, but it would be nice to have the old girl working 100%. It also turns out that the front seal of the transmission is leaking, I am debating whether or not to just have the transmission rebuilt. it shifts fine but its gotta come out anyway. Its a 700r4 and the trans guy recommends stronger 3-4 clutches and a shift kit to make the holding pressure higher.

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Grand AM :: 98 - AC Compressor Not Coming On - Cooling Fan Runs When Car Started?

I have a 98 Grand am with the 2.5 and recently noticed first that the a/c compressor wasn't coming on. It had freon added recently and did okay for a few days,then no compressor coming on again. (It still has freon) Then I noticed that the engine cooling fan was running as long as the engine is running on cold or hot engine with heat controls off (I know the compressor runs when on on defrost position as well as a/c). I thought the 2 problems may be related? I found 5 relays at R/F strut tower and the 3rd relay cut off the fan,so I swapped some of the relays, but made no difference.The fan only quits when I turn the engine off, and I can't get the a/c compressor to come. I don't if I have 2 seperate problems or not. Could it be the PCM?

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Buick - Lucerne :: Car Bounced More Than Once - Air Compressor Runs For 5 Seconds?

I just put new rear air shocks on my Buick Lucerne. I noticed the back in my car bounced more than once when I tested them. After starting the car I hear the air compressor run for about five seconds. This seems to have no effect on my new shocks. The old shocks had holes in the bladder. What tests can I perform to figure out what's wrong?

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Pontiac - Bonneville :: 1990 LE 3.8 Liter V6 Runs Rough After Engine Warms Up / Looses Power If Give More Gas

Car has 252k miles runs ruff after engine warms up, looses power, if I give more gas, car will sputter, but rev up to 5k engine smoothes out. This situation constantly comes and goes.

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Ford A/C :: 2006 - Air Condition Went Out / Compressor Turns On Runs For A Few Seconds And Then Turns Off

I have a 2006 Expedition with 90k miles. I am the original owner. don't drive the vehicle much just mostly when the family goes somewhere or when I'm putting the Jet skis in the lake.

About a year ago the air con went out and since I don't drive it that much I decided to fix it later, well now is later. How to diagnose the AC system. what I am looking for is a methodical step by step procedure for trying to find out what is causing my AC to not work.

the symptoms are, the compressor turns on runs for a few seconds and then turns off. inside the cab I can hear hear a hiss noise during the few seconds that the compressor comes on and fades away slowly when the compressor shuts off.

I bought a can of 134a with the gauge, I adjusted the gauge for the correct ambient temperature hooked up to the low side and was surprised to see that the Freon was only a little low. I topped it off but still no change in the compressor running.

I bought a set of manifold gauges from Harbor Freight (I know I know you get what you pay for) in any case I hooked up the gauges to see what the pressures are when the compressor turns on but only seeing a little change.

Any way I took my Speedy (expedition) to the local auto air conditioner shop the mechanic hooked his gauge set up to the vehicle, watched it for a few minutes, made some phone calls, came back. He did tell me that he was going to have to replace the compressor, condenser, dryer, expansion valves both front and back and flush the rest of the parts that did not get replaced. I suppose this is a good price if all that work really needs to be done???

However I would like to exhaust all of my options before I dump half the vehicles blue book value into the air conditioning. so I've been searching the internet and found that it is possible the problem may reside in a control valve that may be present in the type of scroll compressor that is in the expedition.

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Ford Transmission :: 1990 F250 - Sluggish When Starting Off In Drive

Automatic transmissions! I have a 90 F250 4x 7.5 and E4OD. I have been chasing electrical gremlins, and I'm not sure if these problems are related or not. Symptoms: When starting off in drive, it feels very sluggish, as if it is starting in second gear. Manually putting in first works. When left in drive it will drop all the way into fourth at 20-25 mph. If left in drive, when you turn a corner and step into the throttle the trans will rapidly shift up and down causing a surging effect. Manually moving the shift down into second stops this. I have been considering swapping the PCM from an 89 7.5 E4OD parts truck I have, to see if that cures any of the problems.

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Ford Transmission :: E4OD - 1990 F250 Overheats In Overdrive

My 1990 F-250 with the 460 overheats when driving in overdrive. Driving a hundred miles will turn the trans fluid brown and the transmission is very hot even though it drives just fine. If I drive it out of overdrive I have no problems at all.

It all works fine except the overheating in overdrive, no flashing on the overdrive light. The tans shop is not getting a code, they tell me they have to rebuild the tranny.

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