Edmunds Answers

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  • avatar mastertech19 04/23/10 4:41 pm PST

    my first idea for you to check would be the TR switch trans range switch on top of the transmission mounted right on top of the trans mission gear select shaft. Unplug it and see if the connection are all green. If they are clean test power comming from the ignition switch into the TR switch and then plug it back in and hold on the crank posistion and see if u have power comming out of the trans range switch while cranking which is your soleniod wire going to the starter. They are very common for this problem. And yes the security does screw up at times do u have the pellet in the key if so u can messure the resistance of the pellet get a resistor of the same value and find the 2 wires going to the ignition tumble cut them and wire the resistor in series with the 2 wires. Good luck hope this helps you out.

Answers

  • mastertech19 04/23/10 4:41 pm PST

    my first idea for you to check would be the TR switch trans range switch on top of the transmission mounted right on top of the trans mission gear select shaft. Unplug it and see if the connection are all green. If they are clean test power comming from the ignition switch into the TR switch and then plug it back in and hold on the crank posistion and see if u have power comming out of the trans range switch while cranking which is your soleniod wire going to the starter. They are very common for this problem. And yes the security does screw up at times do u have the pellet in the key if so u can messure the resistance of the pellet get a resistor of the same value and find the 2 wires going to the ignition tumble cut them and wire the resistor in series with the 2 wires. Good luck hope this helps you out.

  • zaken1 04/23/10 4:49 pm PST

    Aside from such exotic items as key security chips; there is an everyday item called the neutral safety switch; which usually causes the kind of problem you describe. This switch is attached to the gearshift linkage; and is designed to prevent the starter from being activated, unless the transmission is either in Park or Neutral. The contacts in neutral safety switches go bad over time; which then prevents the starter from being activated. Often, the Park contacts will fail while the less frequently used Neutral contacts will still work. So it would be worthwhile to see whether the starter will work when the gearshift is put into Neutral. If it does; replacing the neutral safety switch will fix the problem. But that switch can also go out on both contacts; so even if it also doesn't start in Neutral, the switch may still be bad.

    The ignition starter switch also has a set of contacts in it, which are only used for starting. These contacts also go bad over time. You can bypass the neutral safety switch and the ignition starter switch at the same time by connecting a jumper wire (or a remote starter pushbutton switch) to the battery positive (+) terminal; and briefly touching the other end to the small terminal on the starter solenoid where the wire from the ignition switch normally connects. It is important to have the ignition switch turned on when you do this; because many ignition switches have an anti theft feature that grounds the starter terminal when the switch is off. But bear in mind that this test may result in the engine starting; so be sure the transmission is in Park and the parking brake is firmly set. If the starter works consistently in this test, then the problem is either the ignition starter switch or the neutral safety switch.

  • morin2 04/23/10 6:31 pm PST

    All good stuff. I assume that you've checked the battery cables for good contact with the terminals and cleaned all corrosion from the battery connections. Often, there's enough contact for the lights, radio etc but not enough for the relay or starter solenoid. The connections can be cleaned to bright metal and then sprayed with a corrosion protectant that looks like a reddish grease.

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