Pontiac sunfire 1999 faulty speedometer

1999 PONTIAC SUNFIRE
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EXSORCISTE666
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If just recently changed my clutch on my sunfire and I'm seem to have a problem with my speedometer, when I start the car change gear my speedometer does not move I hit a speed bump and all of a sudden it starts acting up it will go up and down wildely with out showing the right speed, I keep driving press a couple of times my clutch pedal hit another speed bump and it comes back to normal,and it will work fine till i turn off the engine.

do they need to disconnect the speedometer to change the clucth?

is the speedometer connected to the clutch?
Sep 8, 2007 at 6:59 PM
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CLY
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The vehicle speed sensor is what sends the signal for the speed. They would have had to unplug it to remove the transmission in order to replace the clutch. I woud start by checking the wires at the speed sensor. Make sure that there is not a broken wire. Give them alittle tugg aswell sometimes the wire breaks inside the wire insulation and is hard to see....


Cly
Sep 9, 2007 at 7:36 AM