Question about 1996 Lincoln Town Car

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Speedometer reads upto 120 mph sitting still with ac on high

Only reads this sitting still engine running ac on high also the blower has only high speed and the auto ac dont work.

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  • craig426 Dec 03, 2008

    My speedometer reads 120mph or what ever number it wants to when at a stop. It is also adding miles to the odometer. The AC is set to full auto.

  • bigbriano Dec 20, 2008

    i have the same problem.. WTF???? everything else works fine but when i first start the car the MPH and miles go up. could this be from a bad vehicle speed sensor??

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Yo, i finally figured out the speedo jumping problem. i took my towncar to a shop and they told me it needed a new instrument cluster, they replaced that and still the same problem. they narrowed it down to some bunk diodes or something in the alternator. replaced the alternator at Schumacher Goodyear and the price was 275. had all the speed sensors checked and they were fine as well. also this website is very helpful for do it urselfers.

http://www.lincolnsonline.com/tech/tech.html


Posted on Feb 19, 2009

  • bigbriano Feb 19, 2009

    also for the EATC (electronic automated temp control) there is a on board diagnostics test that you can run to test the shiz. follow these steps and get the code and find whats wrong.

    1995-1997 Towncars
    http://www.lincolnsonline.com/tech/00128...

    1993-1994 Towncars
    http://www.lincolnsonline.com/tech/00208...

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Your AC problem is the ATC Head. (ATC -Automatic Temperature Control)  The unit that you use to set the climate control in your car. That part needs replacement.  You can buy one from the dealer "NEW" for around $500 US.  Or you can go to eBay and get one for around $35 US.  Replacing that will remedy your AC blower problem and your fan speeds should work again.

Posted on Feb 19, 2009

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Hello
You well may find out that the trasmission speed sensor is the problem? As we see this all the time in the UK on the Towncars limousines.

hope this helps
www.limotec.co.uk
All the best Paul

Posted on Jan 11, 2009

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