Wires grounding out on intake manifold/injection assembly??? 22RE

[87_SR5]

Got up to go to school this morning and got nothing but the click of the starter relay when I went to start. So, after I got home, I investigated this.

I knew it wasn't the clutch cancel circuit, because you could hear that relay...same with the starter relay. I was thinking it might have been the starter.

I had a friend turn the key over several times while I listened under the hood. I could hear the starter relay, but I could also hear a wire shorting out. I remember reading a post talking about the wires shorting out that run under the intake manifold:

http://www.toyotanation.com/forum/t14957.html

I found it! I will also post this as a new post for I think others may have the same problem. The wiring harness that runs under the intake between intake and injection assembly rests on the assembly. Apparently over time the vibration wore through the wrapping and insulation exposing wire. The harness was arcing to the assembly thus creating a short to the ignition. It had actually pitted the metal over time yet was hidden by the harness. I wrapped it and problem was solved. This is probably a common occurence for this is the factory routing for this harness.

I could definitly hear the short coming from the intake. I wiggled the wires around that ran under the manifold, looking and feeling for anything that was rubbing. Its a tight space so I couldn't really see anything.

A while after messing around, I tried to start it.......and it started.


Okay, so i guess wiggling around those wires fixed it??? I wanted to see if that was the problem, so while the truck was running, I wiggled the same wires around hoping to get one to short out like it did. No luck.


So I don't know what is wrong, but I want to get it fixed so it doesn't do this again. Has anyone had this problem? Can anyone explain where exactly it is rubbing? I was thinking I should just take my manifold off and see what is going on....and while I am at it take my injectors in for cleaning/testing.


I have a feeling that if there are wires shorting out, then this is what is causing my engine to cut in and out when I go around a corner (not all the time....but it only happens when I turn right):

http://www.toyotanation.com/forum/t65750.html


Any ideas??? Sorry for the long post

[Toy Sport 4x4]

Could be the solenoid. They will make the click when you hit the switch but will not rotate the starter. A lot of times you can have someone hold the switch and you can hit the starter solenoid and it will crank. The way to fix it is replace the solenoid.

[burger]

It would be your starter contacts inside ,not the solenoid.This is a VERY common problem.ther are 3 different types,all made by nippondenso.Cost is about$5 a set.The grounding out thing may be the cause of your miss,though.Did you post about that before?

[87_SR5]

Originally Posted by burger

It would be your starter contacts inside ,not the solenoid.This is a VERY common problem.ther are 3 different types,all made by nippondenso.Cost is about$5 a set.The grounding out thing may be the cause of your miss,though.Did you post about that before?

Yea I posted about that before:
http://www.toyotanation.com/forum/t65750.html


The thing is though I didn't even touch the starter when I was looking around...the only thing I did was move those wires and it started after.

That was my original thought though; that is was the starter solenoid or the starter relay (but ruled out the relay when the clicking was heard).



IF the wire(s) were grounding out, would this cause the truck to not even turn over at all? When my friend turned the key...as soon as you heard the starter relay click, you could hear the wire shorting out...as if that wire was for the starter??? But then that wouldn't cause my engine cutting out problem.. (But then again, that wire could affect the entire system)

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At first I thought the grounding out problem was from it rubbing on the manifold, but after re reading the post, it said on the injector assembly. Went out and took a look and saw the wires laying across the assembly, along with a spot that looks like pitting (as desribed in the other post). Tomorrow I will mess with that wire and see if it is worn through...also to see if I can get it to ground out when the engine is running (which would solve my other problem). I may snap a picture also...


Thanks for the help

[Toy Sport 4x4]

I have talked to a mechanic that has worked on nothing but toyotas for the last 30 years and he said it is most likely the solenoid because that is the only thing he has ever seen happen. he said he has never seen the starter itself mess up. I personally have had four toyotas 3 4runners and one truck. All had problem with solenoid. It is where the contacts come into it. The solenoid is bolt on top of the starter on the ones i have had. When the solenoid starts messing up it will work sometimes and sometime not. I have noticed it seem to be most evident when it is hot/warm. This isn't to say that it is the solenoid but it is worth checking out. You can't diagnose something over the internet.

[ElmerFudd]

Check your battery terminals, my positive was bad and the starter wasn't getting the juice it needed to turn. To test it just get someone to hold the key to start while you jiggle the terminals.

[burger]

If it is grounding out,that would definitely take enough juice away from the starter to give that dreaded "click".Like Elmer said,even a loose cable can cause the problem.If you find it's not the wires,changing the contact points is fairly easy,getting the starter off is the harder part!

[truck action]

There's also a start open relay above the ECU computer at the right kick pandel. When you turn the key that is the click you hear. Iv'e heard that water somenow gets to them!