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93TURBOEG
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Jul 3, 2011, 6:21 PM
Post #1 of 9
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A/C CLUTCH TURNING OFF
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OK IM HAVING A PROBLEM WITH MY A/C IT WORKS FINE BUT WHEN I COME TO A STOP FOR A WHILE THE A/C CLUTCH TURNS OFF AND STARTS BLOWING HOT AIR BUT WHEN I START DRIVING IT KICKS BACK ON AND WORKS FINE AGAIN IF ANY ONE KNOWS WHY LET ME KNOW THANX
O YEAH I FORGOT IT A 95 HONDA CIVIC SORRY
(This post was edited by 93TURBOEG on Jul 3, 2011, 6:25 PM)
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Hammer Time
Ultimate Carjunky
/ Moderator
Jul 3, 2011, 6:28 PM
Post #2 of 9
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Re: A/C CLUTCH TURNING OFF
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The next time it cuts out, test for power arriving at the clutch. It appears you could have either a weak clutch coil or too wide of an air gap at the clutch. Since it releases after it has already been engaged, the weak clutch would be the more likely of the two.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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Tom Greenleaf
Ultimate Carjunky
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Jul 4, 2011, 10:56 AM
Post #3 of 9
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Re: A/C CLUTCH TURNING OFF
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Listen to Hammer. I'll add that if power gets to clutch that the air gap could be too much. Spec is .020 give or take some but near there.
If empowered and compressor turns on with a tap (HEY BE CAREFULL!) then air gap is likely. PITA but can be adjusted,
Tom
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Discretesignals
Ultimate Carjunky
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Jul 8, 2011, 9:17 PM
Post #4 of 9
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Re: A/C CLUTCH TURNING OFF
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Also check your head pressure. If the condenser fan isn't running when your stopped, the head pressure will get too high and open the ac pressure switch circuit which shuts off the compressor.
Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.
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Tom Greenleaf
Ultimate Carjunky
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Jul 9, 2011, 4:55 AM
Post #5 of 9
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Re: A/C CLUTCH TURNING OFF
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Upon re-read was thinking high head pressure now too could do this. Didn't look it up but this car doesn't hold much for refrigerant and less air flow when idle or slow moving would kick out compressor if somehow overcharged or fan not working properly,
T
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Hammer Time
Ultimate Carjunky
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Jul 9, 2011, 6:12 AM
Post #6 of 9
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Re: A/C CLUTCH TURNING OFF
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All of which would have been found if he followed my original instructions to test for power at the coil.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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Tom Greenleaf
Ultimate Carjunky
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Jul 9, 2011, 6:22 AM
Post #7 of 9
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Re: A/C CLUTCH TURNING OFF
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I'd sooner put gauges on it to know if somehow high or low pressures are causing this. Of course compressor would need to stay engaged then go for checking the coil. 3.5 to 4ish OHMs or it's probably bad. I've never seen an intermittent coil,
T
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Hammer Time
Ultimate Carjunky
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Jul 9, 2011, 6:42 AM
Post #8 of 9
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Re: A/C CLUTCH TURNING OFF
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Well, I find it much simpler to first determine if the coil is being shut off or not to have a direction to go since the initial testing would likely be done on the side of the road where no gauges are available.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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Tom Greenleaf
Ultimate Carjunky
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Jul 9, 2011, 7:07 AM
Post #9 of 9
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Re:95 Civic, A/C CLUTCH TURNING OFF
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Yes - should be easy enough to see if it has power or not and yes if power it should be engaging. To original poster, you can assimilate better air flow and lower high side pressures without looking by simply misting the condenser with hose water. If it stays engaged pressures will be needed as the water will cool it better than air flow.
You can rent gauges (free) for just a safety deposit at the larger parts houses but need know how to just read pressure and keep knobs closed for now if you try that.
Up to you and can go from there with basic tests as to what the heck is doing this, and if you want to take it on or what? Learning and doing something wrong can have a very high tuition with A/C,
T
(edit to just add what car this is in subject line)
(This post was edited by Tom Greenleaf on Jul 9, 2011, 7:09 AM)
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