Question about 1997 Cadillac DeVille

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1997 Deville Stuck in first gear/no speedometer

Speedometer was working and tranny shifting fine untill I tried to go on the highway. It started showing different speeds and then 0. The tranny also felt like it was slipping in and out of overdrive. It then was stuck in third. After shutting it off and turning it back on it was stuck in first. I tested the VSS and the wire and it seemed fine. I spun the tires in snow and when the traction came on my speedometer worked for a short time. Anyhow, its still stuck in first. Any ideas of where I should start? I got po502 which is low voltage from the VSS. I do not want to bring it to the dealer.

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  • l_m_gauthier Dec 14, 2008

    I changed the vehicle speed sensor and that solved the problem. It was 31 dollars canadian. It is located above where the right axle comes out of the transmission. I did notice though if you need your car to operate untill your issue is resolved you can take the 30amp maxi fuse for the abs along with the 10amp for the abs/traction control fuse and drive in 3rd gear. l.m.gauthier @ hotmail.com

  • Anonymous Mar 28, 2014

    have low gear have to pull over leave car run for 3 min then will work again speedometer does not work either

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Check all wires from trans and connectors to pcm look for rubbed or pinched wires on frame and body repair as needed if you find pinched wires cut out were they were pinched and resoider wires.

Posted on Dec 13, 2008

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