1999 Peterbilt 377, speedometer needle bouncing or not working at all. Where do I start looking. Thanks in advance.
Speedometer
Discussion in 'Peterbilt Forum' started by wigglewagonpilot, Jul 31, 2014.
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I'd start with the VSS (Vehicle Speed Sensor)
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Have you used the search feature? I fixed mine by reading the information already posted. . My sensor was sticking into the transmission. 07 386. Not sure if your 1999 is the same.
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Thanks for the advice. No info for that subject. I will keep it in mind in the future.
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Try changing the speed sensor. It is located at the rear of tranny on top of output shaft
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