Speedo acting like tach.
#1
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Speedo acting like tach.
I'm having an intermittent problem with my speedo. It works half of the time, but when it's not working like it should it works more like a tach. I can put the truck in neutral at any speed and rev the motor and the speedo goes up and down like a tach. I have replaced the wires all the way from the speed sensor to the top of the engine, but I haven't gone any farther than that. Has any body else experienced this and found the solution? Or do I have to just chase this through the whole wiring harness?
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#7
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Thanks for the info. I was thinking this might be a ground problem cuz the temp gauge jumps when I hit bumps but I didn't know about a cluster ground.
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johnsonjl2
3rd Gen Engine and Drivetrain -> 2003-2007
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12-13-2007 08:41 PM