Question about Mercury Marquis

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Air cond quit someone pulled wire from AC now won't start Shop says may have to replace car computer Have you ever heard of a complete compuiter being replaced? Its a 2003 Mercury grmrls/lse sedan 4D

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I've heard just about everything. I would ask for a second opinion by another garage. It might be something simple like a detached wire on the compressor or a blown fuse or relay.

Posted on Mar 21, 2011

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Posted on Jan 02, 2017

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I have a 2006 ls impala with 126k on it. The last couple of days the computer in the dash,right after it's cranked, will say be careful of ice and the ac won't blow cool air. After a mile or so the...


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My1998 explorer just quit it won't start i got new


The 98 explorer is equipped with a power surge system to protect internal vehicle wiring, what this means is that if there is a short in the vehicles wiring the alternator will disengage. A way to tell if it is faulty wiring is to pull all the fuses out of the fuse block and try to start it if the engine turns over the problem is internal wiring. If not then you have to put all the fuses back.

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I am hoping someone on here can help me with my problem...My check engine light came on my 2003 Chrysler 300 M special edition and also wouldn't start at times for up to 30-45 minutes at a time, and...


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and another reason is the code didn't clear out completely. this tool can help you test the code.

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1 Answer

99 honda civic lx, coolant was found in motor oil-head gasket replaced...now for some reason the ac will not work! it was working fine and mechanic claims it was working fine when he test drove it after...


GOOD LORD,, Not here to knock any ones work but.. could be many things.. I guess you checked all fuses.. sounds like fuseable link didn't like being wired around.. I would make sure acc. wire is not missing from battery. check pressure switch wires at the dryer see if you have fire with switch on if not run hot wire and see if air comp kicks on .. do you have power to air cond fuses .. bet you dont.. fuseable link or check relays fuseable link didn't like that wire around.. hard to tell you where to start.. need someone to undo what he did i would call Better Business Bereau. I could coach you threw this repair but we would have to have better communication..

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The air conditioning quit. I was told since the radiator fan would not work ( for the air cond. )that was the problem. I checked the fan & it was good so I changed the powertrain control module and...


The fan is controlled by a relay that could be bad, and the relay is controlled by the climate control unit, which could also be bad. Pull the fan relay and see if it the primary is getting voltage, with a test light, when the AC is turned on.

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When it does not start, does the starter turn and the engine not fire up,  or does the starter not turn?

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