01 Died and Won't Start (Sort Of)
Well this has me stumped.
01 XJ died the other night. We were doing 45ish and it died. Dead. Crank but no start. Had it towed home. Will only crank but won't start. Put a gauge on the fuel rail and had the required 42 ish psi. Researched JF and figured it was the CPS as is normal for a Jeep. Got the multimeter and checked... open circuit between any combination of the three CPS pins. Have 5V at the outside pins on the chassis side of the CPS connector. Swapped the relays around with no change. Figured I would replace the CPS tomorrow. For grins I had my wife crank the engine while I had the intake hose disconnected from the air cleaner and gave it a squirt of ether. Then things got weird...
On occasion, the engine would "backfire", meaning it would spit compression out of the intake hose, like the timing was off. Then, it just started and ran fine. Shut it off and tried to restart it and nothing. Put my hand over the intake hose while my wife cranked it and felt an intermittent "suck". Then, when she quit cranking, the engine started, but was only hitting on a few cylinders and was slow to rev. Shut it off and recranked... Started and ran like new. Shut it off and when it did start, it had an ignition knock, like the ignition timing was way off. Shut it off again and restarted and it would crank but not start. Key off, then crank again and it ran fine, revved up properly with no hint of trouble.
What is this thing doing?
It appears that my Jeep is playing Russian Roulette with the ignition switch. Every time I crank it, it decides to give me a different symptom. I think I liked it better when it just wouldn't start.
Jeep..... The best thing to come from Ohio since aviation.
Originally Posted by Anticanman
Big difference between a Warn winch and a worn wench. I'll take the former.