SPEEDOMETER

2002 Chevrolet Cavalier

Tiny

mustang67mh

August, 23, 2011 AT 9:45 PM

2002 Chevrolet Cavalier with 212,000 miles
4 cyl Automatic

2002 Chevrolet Cavalier What could it be?
I have a 2002 Chevy Cav. Sometimes the speed indicator will start jumping around and the car will shift up and down. Most of the time it is fine. It only does this when the speed ind. Starts jumping. What is the problem? It has a new speed senor.

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5 Answers

Tiny

rasmataz

August, 23, 2011 AT 10:18 PM

Inspect and test the vehicle speed sensor

Tiny

mustang67mh

August, 23, 2011 AT 10:55 PM

It has a new speed sensor. What else can it be? Thanks

Tiny

cadieman

August, 23, 2011 AT 10:57 PM

The speedo head may be bad.

Tiny

mustang67mh

August, 23, 2011 AT 11:04 PM

Will that cause the car to shift crazy, or not at all? It does fine at first, then the speedometer starts going crazy and so does the Trans. Sometimes the trac light comes on. But not always. Thanks

Tiny

cadieman

August, 24, 2011 AT 12:39 AM

You need to read the sensor with a scantool to insure the new sensor has the right signal is being sent. Its quite possable this sensor is causing this problem. Thats why you need to check sensor output and the trans. Is turning the sensor.

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