Hey guys and gals. New to the forum, although I've been browsing for over a week now. I was hoping to gain some help by joining. Awesome forum btw
I acquired my Father-in-laws 1991 Wrangler 2.5L 5-Speed about a month back. It's been sitting in his backyard for just over 2 years. He parked it because he couldn't figure out why it was stalling and not restarting.
Now the Jeep is mine, and I'm left with the task of repairing it. I'll try to keep it short(er)....
I've replaced the TPS (had a code for it), the Pick-up coil (cam sensor), Plugs, Wires, Distributor Cap, Rotor, Ignition Coil, CPS, and replaced the Capacitors inside the ECM. Most of this stuff needed replacing just from sitting. I have perfect fuel pressure at the rail, Injector Pulse, and spark from the Ign coil and at the plugs. This thing purrs like a kitten when it's first started. The problem is when I shut it off after it warms up. It WILL NOT restart for about 20-30 minutes. Everything I've checked for above, I've checked during this no start concern. I've cleaned all the grounds, cleaned every single connector (including relays and fuses) and added dielectric grease, and wiggled every single wire harness....no problems found.
That being said, I have one code left. Code 22 (Coolant Temp Sensor). The gauge itself works fine, so I assume it's the sensor that sends the signal to the ECM that's bad. In discussion with my fellow technicians (I work at a GM dealer), it came up that possibly the CTS might be skewed enough to cause the engine to flood or get starved for fuel once I shut it off. I'm not familiar with the setup in this Jeep. Any comments or possible fixes would be GREATLY appreciated. Thanks in advance!