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ludy
ludy 4/1/2010
2004 Pontiac GTO Base 8Cyl5.7L - Body & Interior
Speedometer gauge reads erratic.
Sometimes the speedometer reads 120 mph and digital is zero. When the car is not moving.
What causes that?
1 Answer
  • Voltes V
    Voltes V 8/30/2010
    Your speed sensor attached to the transmission is faulty or loose.
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