Having problems with your 2006 Pontiac Grand Prix ?
Gas needle on 2006 Pontiac Grand Prix keeps going down when out of gear help.
\015 When I put my car in Park or Neutral the gas needle keeps rolling all the way down and when I start it up it reads that there is no gas and my light comes on any help?\015
If it works in drive but not park, sounds like a short in the harness. A mechanic would check for power and ground at the tank and work back to the gauge.
Repair Help & Product Troubleshooting for 2006 Pontiac Grand Prix
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