Quote:
Originally Posted by 67ChevNut
I checked the fuel relay connector by the firewall, there is no power when I turn the key in it, it does have a constant hot connection, but all the other pins don't work when I turn the key.
I also removed the wire harness connection to the fuse box by the firewall, I checked the purple wire connection with the test light with the key turned on, nothing, no power.
I checked the junction connection near the battery, on the fender, there is voltage, that connection is good.
I strongly suspect the problem is inside the cab, between the ignition switch and the fuse box, guess I should check all wiring going or coming from the ignition switch. Is there anything in particular I should be checking under the cab, what wires come and go to the ignition switch?
I will check the selenoid wiring to make sure, and I will try a jump wire at the neutral switch.
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Make note of the sentence in bold in the above quote.. The purple wire is not hot with ignition in the ON position --- only in the start position. It energizes the starter solenoid. The purple wire comes off the ignition switch and goes to the neutral safety switch, and on to the starter.
Here's how I check that circuit.. Disconnect the purple wire at the starter in order to deactivate the starter and attach a test light to the wire.. Turn the ignition to the START position and the light should come on. If it does, you have starter problems. If it does not come on, Move the light to the Neutral safety switch. Ignition switch to START again. Probe both terminals, should have voltage on both terminals.. If so, there is a break or disconnect in the wire going to the starter. Suspect #1 would be the firewall junction box. If voltage only on one terminal, check for misadjusted or bad NS switch.. If no voltage on either terminal, move test light to the purple wire at the ignition switch.. Turn it to START again.. If no voltage, either ignition switch is bad or wire(s) are loose at the terminals.. If there is voltage, you have a break or disconnect on the purple wire between the NS switch and Ignition switch.