I replaced the sensor in rear axel and this didn't work, all my gauges work fine. My book shows a sensor in dash behind speedo that can be adjusted. Has anyone ever done this, could there be a thread here that tells about this?

Thanks

 

go to the passenger side in the cab, pull out the glovebox, should be a control module, unplug it, then see if it's better. see this problem all to often

 

Hay dortiz I am not understanding, pull the plug and leave it off or pull it and put it back in to reset, thanks

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If you r talking about the computer mine is a 93 don't have on, thanks

 

Sorry about that, Is the speedometer bouncing around? If so at what speeds does it do it, Mine started at 20mph and was steady until there

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What kind of transmission does it have?

 

It don't do anything, eVen the odometer don't come on, like there is no power to it, all gauges and lights work in dash

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5 speed standard sorry

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Even the tach works

 

Not to sure

 

U betcha, that's for trying.

 

The cruise control module should still be vacuum operated, with the engine running, can you pull off the hose going into it and tell if there's vacuum?

 

The book shows vacuum to Cuervo and brake pedal but no vacuum line on either and not even a port for one, strange must be electronic

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Not even a vacuum can

 

Only thing I can think of it the PSOM, if that is used in that model took a dump on you