Question about 1991 Lincoln Town Car

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91 Lincoln Town Car A/C

Before buying a kit to seal and refill the ac system on a 91 lincoln town car is there a way to check if it's not the freon that has leaked out. That the compressor is not recieving an electric start signal or if the compressor is not working. Will the obd-1 tell me what's the story with the a/c. If yes how do I read the code on this car without a scanner. A scanner cost about $35.

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Don't know if this is your problem, but good to check. This is a very common problem with the ACs on the 1991s and others. I had a 91 lincoln and the problem was with the shims on the magnetic clutch on the compressor. As these compressors get older, it requires less space between the clutch and the magnets that pull it in as the magnets get weak when called for electrically. Its easy to do, didn't even jack up the car. By removing the screw at the center of the pulley, you can pull out the pulley and you will find little washers (shims) inside. You can slowly remove the shims 1 at a time until it will get pulled in by your temp console inside. If you need more step by step instructions, I can find the actual articel that I used. Mine has been working great for almost a year since I removed a shim.

Posted on Dec 08, 2008

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CANT HELP W/ AC BUT THE TROUBLE CODES CAN BE READ THROUGH THE CHECK ENGINE LIGHT IF YOU JUMP THE DIAGNOSTIC TERMINAL W/ THE GROUND. YOUR CHECK ENGINE LIGHT SHOULD FLASH IN SETS(3 FLASHES THEN 2 FLASHES) WHICH IS YOUR CODE. THE FIRST CODE IS USUALLY A DIAGNOSTIC STARTED CODE FOLLOWED BY THE ACTUAL PROBLEM CODE. KEEP IN MIND THE SENSOR THAT IS TRIPPING IS NOT ALWAYS THE PROBLEM. MANY TIMES THE SENSOR IS JUST DOING ITS JOB OF TELLING YOU THERE IS A PROBLEM RELATED TO THE OPERATION OF THAT SENSOR.(IAC VALVE JUST LETS YOU KNOW THERE IS NOT ENOUGH AIR)

Posted on Sep 03, 2008

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