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Speedometer going crazy
Posted: Tue May 01, 2018 10:08 am
by Rustybux
94 Pathfinder...My speedometer is going crazy. It bounces all around and then stays at 100 mph. When I start slowing down...the needle bounces around. sometimes I stop at the stop light and the speedo is still showing that I'm moving and the odometer is turning over the tenths. I ran a code, said "Speed Sensor" I replace it and it's still doing the same thing. WHAT IS HAPPENING?
Posted: Tue May 01, 2018 12:03 pm
by smj999smj
Is it electronic or cable-driven? If it's electronic, you likely have a bad speedo head. If it's cable driven, I would first suspect a bad cable.
Posted: Tue May 01, 2018 1:22 pm
by Rustybux
smj999smj wrote:Is it electronic or cable-driven? If it's electronic, you likely have a bad speedo head. If it's cable driven, I would first suspect a bad cable.
It's electronic. How can the speedo move is the speed sensor isn't sending any signal to the speedo head? Guess I'll try to find another head for it and see if that helps. After replacing the speed sensor in the trans...i cleared the codes and after a week, the light came on the dash again...ran the code and it came up with speed sensor again.