Is it theNeutral safety switch????


Asked by Feb 09, 2017 at 11:11 PM about the 2004 Pontiac Grand Prix GT1

Question type: Maintenance & Repair

I have a grand prix 2004 and i changed the
transmission and i realized the car didnt have and
wires for the nss but know i cant start the car with
the key. When i turn the key and jump the starter it
cranks up and runs but my reverse lughts are out
and i cant pop the trunck. Do any one kno the

2 Answers


The shifter cable may be out of adjustment. To test, park AWAY from anything you could hit! Put your foot FIRMLY on the brake pedal and set the emergency brake! Try starting the engine in each gear (P, R, N, D, etc.). Be prepared for the engine to crank and the car to possibly move forward or backward! If you can start the engine in any gear position other than park or neutral the shifter cable and/or the neutral safety switch is out of adjustment. I'd lean towards the shifter cable being the problem. HTH. -Jim


Great answer but its adjusted correctly when i start the car its in park for sure...that was simple....i messed with the ims and was moving the shifter cable in each gear and trying to start the car.... nothing happened, i believe thats what it is called...but nothing work its confusing because the car was just running fine untill the tranny went and i changed it!!!! and what makes it difficult is the car does'nt have the wires to connect to neutral safety system!!!!!!!! Is there a way i can add tge wires to car for the nss and if so is there a diagram to add the nss wires in a vehicle???? I been at this since november!!!!!! PLEASE HELP THE MECHANICS I ASKED DONT EVEN KNOW NIGHA HELP ME!!!!

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