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Ac clutch won't engage on a 1999 dodge grand caravan automatic


Tap the clutch with a hammer lightly while a/c is on full blast. If it still doesnt engage its time for a new one. Future reference in the winter keep your heat on defrost some of the time, it activates your clutch in the A/C compressor so the bearings wont seize when you go to turn it on, on a hot day.

Jul 08, 2014 | Cars & Trucks

2 Answers

Why when i turn on the ac it slows down my acceleration?


its doesnt slow down your speed, you have more load on your engine so it feels like its running less well ut in fact you are making your engine work harder

Jun 14, 2014 | Honda 90 91 92 93 Accord Ac Compressor Dx...

1 Answer

I havepower to clutch relay ramps up eng.but compressor doesnt engage tryed taping on clutch but no engagements. 2009 nissan sentra exe


-Are you talking about air conditioning compressor?
-If so. Here there are few thing cause not to engage.
1. Freon is too low. (Or none at all)
2. Compressor itself is bad.


Mai Lor

Oct 10, 2013 | Cars & Trucks

1 Answer

Loping idle 1995 honda accord occurs when ac is on for a few minutes seems like the compressor clutch is engaging and disengaging it is a nuisance and the air doesnt blow as cold


bad compressor? (seizing) or
or engine is so weak, at idle (lean), that it cant run your compressor.
the reason for the lope is the ECU idle speed controls going crazy.
id say, the ISC is a victim here.

Aug 02, 2013 | 1995 Honda Accord

1 Answer

Replaced r12 still blows hot air only


is your pressure sensor on the condensor working, it controls the engaging and disengaging of the compressor, if your compressor doesnt enguage it could be a bad compressor, and with my old c4 vette which was a 1992 the test for it was to run the ac on max, let the compressor try to cycle on its on, if it doesnt unplug the pressure switch on the condensor, but (WARNING: YOU MUST DO THIS EXACTLY AS STATED) plug it back in with in 5 seconds. as the pressure switch is what tells the compressor to engage, (NOT PLUGGING IT IN WITHIN 5 SECONDS COULD CAUSE YOUR SYSTEM TO BE OVER CHARGED AND EXPLODE.) . if your ac clutch does engage and your starts running the compressor with in that 5 seconds, your compressor is good. but this will also narrow it down to an either A: and over charged system or B: a bad sensor on the condensor. or C: if your compressor runs constantly, and undercharged system. Make sure to check for leaks, use some water around the two a/c system servicing ports, check the high and the low side as over time the O-rings deteriorate, and even though they have the plastic cap on them they can leak. remove the plastic caps, and put some soapy water around them and see if you get in bubbling with the system on. On my 92 the a/c use to leak down ever 30 days, i thought it was the compressor leaking during operation. i soap water tested all the connections and it was the service connections leaking. Went to autozone, replace the caps, reserviced, and went 3 years (Before selling the car) without having to service it again.

Aug 10, 2010 | 1990 Chevrolet Corvette

1 Answer

1992 town car no air conditioning


if you have freon in the car and the compressor still doesnt engage check the clutch on the front of the compressor and if that doesnt engage you need a replacement clutch

Mar 27, 2009 | 1992 Lincoln Town Car

1 Answer

2000 Jeep Grand Cherokee Ltd 4.0L A/C problems


this is most likely a a lack of r-134a (as freon is no longer used), if your system is completely out or close to it then the pressure sensor will not allow the compressor clutch to engage, it is also possible that there is an electrical issue but less likely. to know for sure you need to put some gauges on the system

Mar 21, 2009 | 2000 Jeep Grand Cherokee

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