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Could be a problem with the anti-theft system, the neutral safety switch, the key switch, or the actual starter.
Will it crank in neutral instead of park ? Do you have power at the starter posts when the key is in the start position ?
Is the security light blinking ?
It could be the starter has a dead spot,the battery voltage is weak,the ignition switch itself,the antitheft passkey or the neutral safety switch..it could also be a bad brake switch.The shift /start interlock is connected to the brake switch...
troubleshooting..... 1) put a test light on the small wire on the starter and see if it lights when attempting to start.if it has 12v or the test light is bright,,but will not crank,tap the starter gently with a plastic hammer,if it cranks the starter is bad.2) make sure the security light is going out.If not it is not reading the passkey and the ignition is faulty.3)when it does not start,jumper with a good battery and see if it starts if it does the battery voltage is low.4) make sure the brake lights go on with every application of the brake pedal.5)try to start in neutral instead of park when the failure occurs,if it does...the neutral safety switch is no good.
best of luck
Nope. The neutral switch has 2 functions. It prevents the engine from starting in any other gear but park and neutral. It also switches on the back up lights when in reverse. You have electrical problems located elsewhere.
sounds like you may have locked the starter - try starting it in neutral. If this fails - remove the starter and test it at the local store - most likely it is dead if the car refuses to start in neutral.
Take down the Vin # and call the local dealer - - ask about recalls and Service bulletins.
check solenoid and or key switch... try jumping out key switch and solenoid by bypassing with a remote starter button, can buy a cheap one at kragens or autozone... tap with prybar or hammer handle on starter as someone else operates key switch...
It sounds as if your neutral safety start switch may be failing. This switch only allows for the safe start of an engine when the automatic transmission is in either park or neutral. It seems when you move around the gear selector you get it back to a spot where the switch allows the engine to start. Next time this happens while in park, try wiggling around the gear selector or place your foot on the brake (so you don't roll away) and place the transmission in to neutral. If it fires up you know to either adjust or replace the switch for the park position.
Check your battery to make sure it has enough power and cranking amps to turn that starter and flywheel. Make sure that your cables are good and move them around to see if that helps. Sometimes those cables can break and corrode inside the outer covering and you can't see it which makes it hard to diagnose. Clean your battery posts and cables. Also another thing you can try is starting in neutral or rolling your car back a few feet to allow it release some tension and hopefully free up allowing it to crank over easier. When you replaced the starter did you make sure to slide it in place and tighten it down good? Did you use shims to allow proper clearance room?...
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