Originally Posted by rob.ab
What is the clutch interlock switch? Also what is a CPS? I appologize for my ignorance. Normally I would have taken my jeep to a mechanic by now, but I'm in the military stationed in Italy. Not a whole lot of Jeep mechanics floating around.
Clutch interlock switch. There's a switch, usually on the clutch pedal assembly, that will only let you run the starter when you push the clutch pedal down. If that breaks, the starter will never crank because the circuit is held open.
CPS: Crank Position Sensor. It's a sensor attached to the bellhousing right where it meets the back of the engine. It tells the computer how fast the engine is rotating, along with identifying when the #1 piston is reaching top dead center. They have a habit of going bad after many years of good use. When it goes, the engine dies entirely. When you swap a new one in, it works perfectly again.