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The ac compressor on my 2003 Mercury Grand Marquis stops rotating after I start the engine. Is there a way to disable the ac compressor?

The ac compressor stops rotating after I start the engine.

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Find the wires that go into the clutch on the front of the compressor and unplug it.

Posted on Nov 13, 2014


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2003 grand marqui ac operation

turn on ac , open hood check the cold side pipe. an is the air compressor turning .
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Air suspension compressor sounds bad and wont pump up the rear on a 2003 mercury grand marquis

What is odd is the compressor stopping after so short a time. It may be your only problem.

When you have a leak in the system, the compressor keeps running because the sensors do not signal for it to shut off. On your vehicle it is either being told to shut off prematurely or the compressor is triggering a circuit breaker.

There are ride height sensors on the rear. If the vehicle was lifted without turning off the Air ride, the sensors may have been stretched.

You can check for air leaks in the suspension bags, and air lines using a spray bottle of soapy water. There is also a Master dump valve that should be ahead of the Drivers front tire/radiator well area. It is not a concern unless there is no pressure in the system.

Finally, just as the engine can express diagnostic Codes, so can the suspension. You need a better scanner to do this function. It is the quickest way to find the problem.

Please rate my info.

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The first thing to do is check the connector at the AC compressor to see if it has power whwen the system is turned on. Then check the pressure switch as well for power in and out.

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The first question is do you know if the ac compressor is running ?
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front of engine down low on passenger side (access from under the car), there is no AC delete option so the compressor should be there and not bypassed, what is the question about the AC? it doesn't work?

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