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  • 3 weeks later...

I have a 1993 cadillac deville and my speedometer stop working, what do think could be the problem.

You should check for codes first see the bottom of this post and follow the directions for your year and post the codes here, it may help

But there is a VSS or Vehicle Speed Sensor, I would check the connection to see if its tight and replace it if it is determined to be defective. But check for codes first

Pre-1995 - DTC codes OBD1  >>

1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm

How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/

Cadillac History & Specifications Year by Year  http://www.motorera.com/cadillac/index.htm

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this should be split into 2 topics.

2 completely different setups, 2 different systems, and 2 different problems


Nice, clean, luxury= fine automobile

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