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Merry

Merry 9/20/2012

1994 Buick LeSabre Custom 6 Cyl 3.8L

Transmissions & Drivetrains

Why does the needle that shows how fast I'm going start moving back and fourth on it's own.

2 Answers


CVO

CVO 9/21/2012

" The needle is moving back and forth ", does the engine hesitated a fraction of a second ? If it does, then the engine control module might involved.

See this link and use their instructions to retrieve any existing fault codes MIGHT stored in the engine control module.
http://extreme-check-engine-light-codes.com...

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HouseCallAuto

HouseCallAuto 9/21/2012

Do you mean the speedometer, the miles per hour? If that is correct then you need a new speedometer.

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