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PostPosted: Tue Oct 21, 2014 1:44 pm 
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Joined: Mon Apr 05, 2010 7:59 pm
Posts: 66
Year and Trim: 90 SSE
I have a 2001 GP GT that just developed an erratic speedometer and when it occurs the transmission bucks and shifts a bit harder. It does it when it warms up and usually at highways speeds on left hand bank turns. It will do it in stop and go traffic as well and usually the speedo will drop to 0mph then fluctuate back up when I give it gas. The car has no lights on and has thrown no codes. I'm curious if it could be the speed sensor on the tranny or perhaps a throttle position sensor.

Thanks for any and all feedback.

Mike

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68 Chrysler 300 Convertible
68 Ford Mustang
90 Pontiac Bonneville SSE
98 GMC Yukon SLT
08 Mercury Milan Premier


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