WON'T START, MAY BE RELATED TO THE CLUTCH SWITCH?

replace the clutch switch or temporarily you can unplug it and jumper the 2 wires together. make sure you tape or cover the jumper wire so it won`t short out. you can try to adjust the switch as well.

Did you reconnect the wires and re-position the clutch safety switch at the clutch pedal assembly? If this switch is not positioned or connected correctly it will not allow the truck to start.

There should be a clutch safety switch that prevents you from cranking the engine with the clutch engaged.
Have you checked the switch for power ?

could be ut I would check the coneections on the starter relay starter fuse starter and battery first. clean the terminals on the battery

Neutral safety switch on the clutch pedal may be going out. Its a $15 fix. It tells the computer if the clutch is engaged. If it goes out its like trying to start with out pushing in the clutch, wont turn over at all. Hope this helps.

If the engine does not crank sometimes, you would need to test the clutch safety switch.

It's called the clutch start switch. Yes, it could be bad or needs adjustment.

Push the clutch in and the switch closes contact, so power flows from the ignition switch start position to the clutch switch and on to the starter motor-well, actually to the starter solenoid on the starter motor. If you have a voltmeter or test light, you can test the clutch switch . A red and white wire to it and a red wire from the switch to the starter solenoid. When this wire gets to the solenoid, it is a black wire with red stripe. It should have voltage when key is held in start position and the clutch pedal is depressed.

Go under the dash and bypass the clutch pedal safety switch and see if it starts.

starter

you may have a bad clutch switch which will only allow the car to start with the clutch pedal depressed.it allows power through the switch only with it depressed to start the car so you won`t start the car with it in gear causing an accident.there will be a switch that the clutch pedal pushes against that allows power to flow through it to start the car.there should be power on one side with the key turned on and power on the other side with the clutch depressed.