Ignition switch problem???

[gmguy0324]

i have a 1994 pontiac grand prix 3.1 and it wont start sometimes..it has 203k. i just put a new starter in it and had the alt and batt tested all good. but sometimes when i turn it off and go to start it it wont do anything no click no nothing, but i have full power lights, radio, ect. it starts when it wants to.

[tblake]

attempt to start it in nuetral next time it doesnt start. If it starts, then you might need to adjust or replace the PRNDL switch. Do your backup lights come on when your in reverse?

[gmguy0324]

no it doesnt start in neutral either.. and i havent checked on the reverse lights.

[tblake]

Ok, then your ignition switch is probably the next logical step.

[gmguy0324]

where is the ignition switch located??

[tblake]

Not sure I would jump right into replacement of the ignition switch without a few tests.

Have you checked for b+ on the starter S terminal while an assistant attempts to start the car?

[gmguy0324]

no i havent ... how can u tell if the switch is bad?

[gmguy0324]

know if my ignition switch is bad?? how do i test?

[BNaylor]

Originally Posted by gmguy0324

know if my ignition switch is bad?? how do i test?

Your new post which is the same issue has been merged with the prior post. Please try to keep all questions for the same issue in the same thread. This will cut down on confusion and possible redundant answers.

To start do you have any GM wiring diagrams of your specific year and model GP?

[gmguy0324]

no i dont

[discnik]

See if when you turn the key to the start position you have voltage at the yellow wire on the ignition switch. The red wire is the main hot to the switch.

[gmguy0324]

see thats just it.. i dont know where the ignition switch is

[tblake]

steering column. But you might be able to access a big electrical cluster plug in the drivers side kick panel for test purposes.

[gmguy0324]

yea one end of it is under the dash.. but i dont know how to go about testing