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1993 Ford Taurus AC compressor is not engaging. I have 45 psi of refrigerant

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Remove plug to ac and check the clutch coil with ohms if ok check voltage to it from wire when a/c is on. careful moving fan and wires!

Posted on Apr 17, 2009

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1 Answer

Overcharge refrigerant


The low side will not tell you if the system is overcharged or not. You would need a gauge hooked up to the high side to know that.
It could be a relay, ac clutch, or pressure switch problem.
35 - 45 psi on the low side is normal

Jun 25, 2013 | Ford Cars & Trucks

1 Answer

AC compressor cuts in and out and won't stay engaged?


that means there is not enough pressure/refrigerant in the system. add a can of r134 and it may stop doing it

Aug 30, 2012 | 1993 Ford Ranger SuperCab

1 Answer

2001 ford taurus ac wont engage the compressor when moved to ac selection


Could be a bad pressure switch located on the accumulator. With the car turned off try unplugging the connector and run a wire across. Start the car and turn on the a/c. If it starts to work shut the car down and replace the switch.

Jun 26, 2012 | 2001 Ford Taurus

1 Answer

1984 honda accord AC problem, Clutch does not engage fuse good


The clutch will not engage unless there is sufficient refrigerant in the system.

I believe the 1984 Honda originally had r-12 which is largely illegal in the U.S. nowadays in that a certified mechanic must recover and recycle that kind of refrigerant.

I would recommend that you convert it to r134a if you can afford to do this, by putting new fittings on for a quick connect on the low side.

Add about 2 or 3 cans down at the compressor's low side (low pressure) which has larger pipes than the high side (high pressure).

Charge until the hose says you have 25 psi to 45 psi on the low side while the compressor clutch is turning.

good luck to you on this problem.

Jul 08, 2010 | Honda Accord Cars & Trucks

2 Answers

AC does not work. Compressor will not engage Blower only blows on high speed. Is the two a related problem? Where should I look to solve the problem


The most common reason for the compressor not engaging is low refrigerant pressure. The ac system has a safety switch that will not allow the compressor to engage when there is not enough refrigerant pressure because the the refrigerant carries the compressor lubricant throughout the system. Have the system checked for proper charge. You probably have a leak. The fan is probably a separate issue.

Jun 19, 2010 | 2002 Ford Taurus

1 Answer

Should the AC compressor clutch engage when the


yes. the ac removes moisture from the cabin of your car. if it is not engaging that is why your windows are fogging up. you need to have the ac pressure checked. you may just need a recharge.

Jan 02, 2010 | 2002 Ford Taurus

1 Answer

AC compressor does not engage after you turn the motor off and then start it again.


it's not suposed too for several minutes this keeps you from starting it with load of ac compressor on

if it does not come back after a few minutes ck refrigerant pressure at low side port (static no compressor engauged) it's gotta be over 10 psi or press switch thinks it's M/T and won't engauge compressor
add refridgerant

Jun 25, 2009 | 1993 Ford F350

1 Answer

No air conditionong have 45 psi freon compressor turns but clutch wont engage when it did it turned on and off numerouse times


You don't have enough freon in it. 45 psi when the compressor is not turning is low, Add one can and see what happens. Normal low side pressure with the compressor turning is 35 psi.

Jun 07, 2009 | 2000 Ford Taurus

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