Question about 1999 Lincoln Town Car

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Idle fluctuates fast then slow. Knocks at 30-40 mph. gas mileage down

Idle fluctuates fast then slow. Knocks at about 30-40 mph. 99 lincoln towncar

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  • gerry bissi May 11, 2010

    try disconnecting the battery cable for 10 minutes. Reconnect & drive for 10 minutes while the computer relearns the driving strategy.

  • gerry bissi May 11, 2010

    Have an auto store like Autozone run a free engine scan for codes first. Report back.

  • Anonymous Mar 12, 2014

    1993 saturn idles way too fast, then after 30 seconds slow to normal

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Your ECU is faulty.
New ECU and voila problem fixed

ohh ECU= engine control unit

secondhand with do just fine.

get it fitted by professional

Posted on Apr 16, 2009

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