Thread: Bouncy, inaccurate speedometer at speed
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Old 03-29-2018, 07:57 PM
PHMCobra PHMCobra is offline
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Join Date: Dec 2014
Location: Chandler, AZ
Cobra Make, Engine: Backdraft Cobra RT3, Roush 427R Crate Engine, Tremec 6-Speed Transmission
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Similar problem with my Backdradft Cobra (1360)--shortly after I purchased the car. The speedometer would jump erratically at times just as you have described. I cleaned the electric coupling from the tranny to the speedo panel--located from the tranny to the passenger side of the tranny under the car. Perhaps a poor connection from installation-- just whatever. I have had problems since! Drive SAFELY! Phil
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