So check this: 94 Runner wont start, but look...

Dylan

Member
I'll post the question first, and the explanations second...to save some time.

Q: What is the likelihood that adding another ground wire to an apparent existing one caused my inability to start?

The runner was able to start and drive fine after this was done. This morning is when the trouble arose.

I was routing some wires in the engine bay last night for some aux lights. I unplugged nothing in the engine bay. I was simply routing some wires which were not connected to anything. The only thing that I did was unplug the negative terminal on the battery in case I would've started messing with things.

I DID unscrew one screw that looks like it held a couple ground wires. I attached another ground which connects to a relay and a switch. This is the only wire connected to either the relay or switch currently. The picture below is not of my engine bay, but one I found on the net since I didn't have time to take a pic, but circled is the screw I loosened to add the additional ground. All my electronics come on with the key in, the key turns, battery HAS power, but nothing cranks. Additionally, the key stays locked in there unless I undo the negative battery terminal.

I didn't have a chance to reverse what I did this morning due to time.

When I plugged the negative terminal back on last night, my car started and I was able to drive the 2 miles back home. IT was this morning that the issue arose, as I was leaving for work.

1994 V6 auto
 

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Not sure on the specifics, but I do know that if that particular harness you have circles is bad, the car will not start.
 
Not sure on the specifics, but I do know that if that particular harness you have circles is bad, the car will not start.

Thanks FoG. The harness was completely fine. All i did was unscrew the bolt, add another ground wire below it, and then screw it back in on top. I'm going to feel like an idiot (albeit relieved) if I take out the ground I added and it starts. It just seems unusual something that minuscule would cause such an issue.
 
I would take that bolt back out and clean the connections real good.
Perhaps one of the factory ground wires is corroded internally and need replacement... peel back some insulation and check things out.
 
I would take that bolt back out and clean the connections real good.
Perhaps one of the factory ground wires is corroded internally and need replacement... peel back some insulation and check things out.

So I reversed what I did. I took off the ground wire i added to the screw holding this apparent sensor. It started immediately following this.
 

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