Question about 1990 Ford F250

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When the air conditioner is turned on it runs fine for a few minutes, then the compressor starts cycling on and off very quickly, clicking on and off. Shut the system off for a few minutes and restart, the system works again for a few minutes and starts the cycling again. The compressor was just replaced and is new. The system was recharged by a pro. Any ideas?

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It could be a bad relay or a bad pressure switch on the drier.

Posted on Jul 13, 2009

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The a/c light flashes on 2003 Outlander and it just blows hot air. If I play with the hot/cold temperature control knob by turning it back and worth a few times quickly; the a/c may work for a few hours....


The a/c light flashing is usually an indication that there is a problem with the compressor. However, when you recharged the system it worked. Start your car, lift the hood and turn the a/c on. Listen to insure that the compressor cycles properly without any unusual noises(click and whirl noise is normal) like a squeal. Cycles OK...no noise, compressor is fine. You more than likely have a clogged drain tube that you can run a wire up and drain; and you need to replace the a/c pressure switch because that is what is making you blow hot air. The a/c pressure switch is a typical problem on these Outlanders and people wind up replacing their compressor, when they only needed to replace a $25 part! Hope this helps solve the problem. GOOD LUCK!

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Hi, the first check you will want to do is on the a/c clutch. you want to make sure of its operational value. Turn the engine on and raise the hood. make sure the a/c button and controls are on as if you wanted the air to blow cool. while the a/c is in the on position, inspect the clutch action under the hood. the clutch should click in a cycle. this engages the compressor device. it should cycle on and off in a 3 minute interval. if this compressor clutch is not working and it is not clicking, this will be the main issue. a/c clutch failure.

Now, if the clutch is working and, it is cycling on and off in a quick motion, this Will confirm a low charge state and, you will need to recharge the system with a recharge kit or you can take to the local dealership or mechanic.

Ok, if the system has a good charge and the clutch and compressor are ok, this will confirm compressor failure. if the compressor cant do its job by compressing the refrigerant in a proper manner, it will not cool properly. it will spin but, it will not cool.

You will find the problem in one or all of the areas above. i recommend checking the clutch action first then, go from there. make sure the a/c in-dash switch is working as well. this is a problem spot.

Please rate and have a great ady:)

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