Quote:
Originally Posted by Rev.Vassago
I'm scratching my head on this one. The truck won't start at all. Won't even turn over. I replaced the batteries and starter about 4 months ago (PACCAR deep cycle batteries, and Mitsubishi starter). When I turn the key to start it, I get nothing but a single click. I spent the past few hours charging the batteries off the generator, thinking they were low. The gauge is reading 13.5 volts when I turn the key to the "on" position, and all the lights and accessories are working properly.
I'm thinking it might possibly be the ignition switch that took a dump on me, because I noticed the other day that I could pull the key out when the truck was running. Having never had to replace an ignition switch, I honestly don't know if that would cause this problem.
Any ideas on what might be causing this?
...excuse any repetition, as I haven't read the other replies yet...
If the ignition switch is bad, you won't get the click under the hood.
All you need is a test light...
The click is usually the firewall switch which energizes the main solenoid on top of the starter body. The firewall switch has 2 large terminals; the first terminal is always hot, the second terminal should be hot ONLY when the ignition switch is turned to the crank position. So, if you turn the ignition to CRANK, and that 2nd terminal is hot, the switch is OK. ...that will lead you to test the starter/starter solenoid (let me know if you end up here).
If the second large terminal doesn't turn hot during crank, then you must check for fire at the "small" terminal of the firewall switch, if it is hot, but the large 2nd terminal is not hot (in crank position), then the switch is bad.
If there is no fire on the small terminal (careful, as there may be 2; a live and a ground), then the ignition circuit is lost, it comes from the dash switch or crank button (let me know if you end up here).
Does that clear everything up?