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I have a 1994 G20 Chevrolet Full size van and it will not start? I have checked the wire connections to the battery and to the starter, we have checked the battery and was good also, we have even tried to jump start the van with no avail. Really need help asap. we are thinking ingnition switch but not sure where it is located?

Don, IS THERE A CIRCUIT TO

Submitted by Big Block 409 on Fri, 12/02/2011 - 14:52.

Don,

IS THERE A CIRCUIT TO THE STARTER?

DO YOU KNOW WHAT CIRCUIT MEANS?

When you say it won't start does that mean the engine is crankin and not turning over or is it not even crankin?

Is fuel reaching all the plugs?

Is spark reaching all the plugs?

Are all the injectors firing?

Are there any blown fuses, circuit breakers, or fuse-able links?

Is an excessive exhaust back-pressure condition present?

Is cylinder compression proper in all cylinders?

When was the last time the van started normally?

Is there a circuit to and from the PCM?

I had the starter out of the

Submitted by donshull6 on Fri, 12/02/2011 - 15:08.

I had the starter out of the van a month ago and tested the starter and it came back good and since then the van would click and you would have to turn the an ignition all the way off then restart the van and it would start with no problem,this past wednesday the van started with no problems and went to start it wednesday night to go to work it will not start and had had the battery checked also

I had the starter out of the

Submitted by donshull6 on Fri, 12/02/2011 - 15:06.

Don, Your last posting is

Submitted by Big Block 409 on Fri, 12/02/2011 - 17:51.

Don,

Your last posting is clearer than your first posting. Gotta agree with you man, in that it does sound like an ignition switch problem. Here's a link that will help.

http://www.autozone.com/autozone/repairinfo/repairguide/repairGuideContent.jsp?pageId=0900c1528006c9ad

well i just replaced the

Submitted by donshull6 on Mon, 12/05/2011 - 19:13.

well i just replaced the starter switch and now the van does not even try to start at all, I called the automotive store and he said i need to set the ignition? i have no idea how to do that? Can anyone please help me with this i am so confused.

Don, I would recommend that

Submitted by drivability on Tue, 12/06/2011 - 17:19.

Don,

I would recommend that you perform a voltage drop test for the starter wiring and also checking for voltage to the starter solenoid (from the switch) when the key is in the start position.

Let us know if you need help performing these tests and we will walk you through them. Thanks.