Question about 2002 Honda Civic

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Intermittent A/C Problem

I have a 75 mile commute (one way) in the south. It's always hot. If not hot, then humid. I need my A/C.

When I first start the car (blistering heat or early morning) the A/C works fine if either it has been parked in the driveway all night or parked in the lot at work all day. But about 10-15 minutes into driving it the compressor will stop engaging and therefore the A/C stops working.

When it is cool outside it seems to work pretty consistently. But if it's hot outside it just stops. Usually if I leave it on, it will eventually engage right before I get to the house, like it knows I am almost home. Sometimes if I turn it off and wait a while, then turn it back on, it will re-engage for a short period of time.

Any ideas?

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You have several possiblities:

Your condensor fan is not coming on. This is an easy check. Turn off the A/C. Have someone turn on the engine, then have them engage the A/C, while you watch/listen for the condensor fan to engage. If it does not come on, then you need to replace it (this is somewhat common). I would check this first.

You have a faulty A/C pressure sensor or A/C pressure sensor circuit.

You have a faulty air conditioning clutch coil (not energizing or engaging air conditioning clutch).

These could be aggrevated by warmer temps. Many circuits will function properly when cool, but not when hot.

A lesser possibility would be to check the tension of your drive belt (it turns the A/C). When warm it could be slipping.


Posted on Sep 17, 2008

  • Brian Berndt
    Brian Berndt Sep 27, 2008

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