Tomh4x4

I have had this problem for a few years. It is a second vehicle and I work on it when I can. This problem has been driving me nuts and am ready to give up. The runner will not turn over. You turn the key nothing happens but I have noticed the clock light will dim out if you hold the key in start position. I have changed the battery, starter, and solenoid. I have noticed when I replace the solenoid that it usually will crank one time but then will not after that. Any clue?

Tomh4x4

Correction:The starter relay not solenoid.

Tomh4x4

possible computer related?

abecedarian

I would probably lean more towards a problem around the starter- the supply from the battery, how well the starter is grounding through its mount, the ground from the engine to the frame (and frame to the battery) and the wire coming from the ignition switch (or switch itself).
I've also heard some people take the wire from the ignition switch and use it to turn on a relay that is wired to connect the battery to the solenoid's switch terminal so that the solenoid power wasn't drawn through the ignition switch.

Tomh4x4

i know where the battery to engine ground is but where is the engine to frame ground at? I can roll it down my driveway and jump it off if that helps but it wont turn over on its own.

FJoel

Which engine are we looking at here?

abecedarian

if you can get started by rolling and pop the clutch, it's not computer related.

which engine do you have 22re or 3vze?

Tomh4x4

Its official I'm going to blow the rolling turd up. After leaving it alone after tinckering with it all last night I just walked out and it cranked right up. It has done this before it will only crank if the engine is completely cool. Any ideas?

Tomh4x4

Sorry 3.0

Tomh4x4

Ok I turned it off tried to crank it and one click from the starter and then nothing. Turn the key again and the gauges and clock die down.(all the way if you hold the key). Pretty sure if I leave to cool down all the way it will crank up.

abecedarian

how close is your exhaust to the starter?

Tomh4x4

its stock exhaust

Tomh4x4

Ok let it cool down from the last time i tried and it cranked back up again. The exhaust is stock so I wouldnt think that would have anything to do with it. Is there a sensor or something that would be telling the truck it is two hot and will only crank when the temp gauge is all the way down?

4Crawler

iTrader: (3)

Here is a quick test you can do to isolate the source of the problem:
- http://www.4crawler.com/4x4/CheapTri...shtml#EasyTest

Tomh4x4

Ok i just did the easy test. The voltage at the starter is 12.5. On the solenoid wire when cranking it only goes up to 9.something. This is when the truck started. I am running it right now to let it warm up and then will check what the voltage is when it is warm and doesn't crank up. Still I don't see why when the truck is at running temperature the voltage would change.

Tomh4x4

Ok tried cranking it when it was hot. The voltage was only 1.4 volts when the vehicle is at running temperature. 9.8 when vehicle is cold. ANY IDEAS?

4Crawler

iTrader: (3)

Resistance can change some place in the wiring. 9 volts at the solenoid is a problem, per the Factory Manual it should be within 1/2 volt of the battery, essentially the 12.5 volts you measured.

EDIT: HERE I STATED THE CURRENT DRAW OF A TYPICAL STARTER SOLENOID:

The solenoid pulls about 20 amps, so a 3.5 volt drop (from 12.5 to 9) would be caused by 0.175 ohms of resistance between the battery and the solenoid and the ~11 volt drop (12.5 to 1.4) could be caused by about 0.55 ohms of resistance.

See the page below for some ideas on boosting that voltage:
- http://www.4crawler.com/4x4/CheapTri...l#OtherOptions

Tomh4x4

Ok but which wire is post 4 and which is post 3 and where do they connect

4Crawler

iTrader: (3)

I assume you are referring to the wires on the starter relay (manual tranny version). Is so, see the wire colors in the diagram. Or you can add a second relay to bypass all the stock wiring like I did (the Hotshot starter relay). Advantage there is you don't need to find any wires aside from the 12 volt post on the starter and the solenoid wire.

Tomh4x4

What is the hot shot starter relay? I went to the site but what is the part number.
I connected the black wire across from the b-w wire to the battery. tried to crank I got nothing. Checked voltage it was .58, could it be the ignition switch.