No start diagnosing

[Amccutc21]

Went to move my project truck today and like the title says, I was unable to get it started. The truck is a 1992 with a 4.0 and 330,xxx on the dash.  I moved the truck several months ago, and had to jump it then. Today, I hooked it up to my other truck from the start and it turned over, would click, but wouldn’t charge enough to come close to starting it. I pulled the battery, and put in a good battery from my other comanche and got NOTHING. Dash lights come on, but will not turn over whatsoever. Not a battery issue obviously. When the key was turned on accessory, I heard a repetitive clicking noise from around the fuse box. Thinking it was the starter, I got underneath and tapped it a few times but still had nothing when I went to start it, but the clicking seemed to have gone away. The key will pull out of the ignition when on accessory, and turn back without the key in it which obviously isn’t supposed to happen, whether it’s related or not? Also, not sure if it’s related, but I have started the process of removing the bed and have heard of issues of no starts after people have done this. Any help is appreciated before I start throwing parts at it.

[Pete M]

my truck was notorious for corrosion on the battery cables causing a no-start.  sure enough, I'd clean up the contact surfaces with steel wool and it'd crank over.    

[HOrnbrod]

You have what sounds like 12V and ground to the ECU, so check for fault codes.

 

[Amccutc21]

11 hours ago, Pete M said:

my truck was notorious for corrosion on the battery cables causing a no-start.  sure enough, I'd clean up the contact surfaces with steel wool and it'd crank over.    

There's no visible corrosion on the cables where they make contact with the terminals. Any other place I should be checking for corrosion?

[Amccutc21]

10 hours ago, HOrnbrod said:

You have what sounds like 12V and ground to the ECU, so check for fault codes.

 

 

Never knew such a thing existed! I will give it a try when I get home from work to see if I can get any response concerning this issue. Thanks!

[grumpiebill]

Went to move my project truck today and like the title says, I was unable to get it started. The truck is a 1992 with a 4.0 and 330,xxx on the dash.  I moved the truck several months ago, and had to jump it then. Today, I hooked it up to my other truck from the start and it turned over, would click, but wouldn’t charge enough to come close to starting it. I pulled the battery, and put in a good battery from my other comanche and got NOTHING. Dash lights come on, but will not turn over whatsoever. Not a battery issue obviously. When the key was turned on accessory, I heard a repetitive clicking noise from around the fuse box. Thinking it was the starter, I got underneath and tapped it a few times but still had nothing when I went to start it, but the clicking seemed to have gone away. The key will pull out of the ignition when on accessory, and turn back without the key in it which obviously isn’t supposed to happen, whether it’s related or not? Also, not sure if it’s related, but I have started the process of removing the bed and have heard of issues of no starts after people have done this. Any help is appreciated before I start throwing parts at it.

My guess would be either ignition switch or starter relay or starter solenoid...on the 4.0 it should be fairly easy to get to the solenoid on the starter. Create a jumper from the fat wire to the little wire. I use a flat blade screwdriver. If it cranks the issue will be either ignition switch or starter relay in the power distribution center (fuse box) near the battery...

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[Pete M]

2 hours ago, Amccutc21 said:

There's no visible corrosion on the cables where they make contact with the terminals.

 

and there never will be.  it's a thin film that slowly builds up between the battery terminals and the cable clamps. juuuuust enough to stop the choke of electricity.