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1988 Trooper II aprox 123,000 miles. The engine was totally rebuilt less than a year ago. New rings, bearings, gaskets and seals, cylinders honed, basically everything that would constitute a rebuild from the block up. Had a no start situation after the rebuild, due to a timing issue that was resolved. Then it would sporadically turn off while driving. No signs of anything wrong, it would be running perfect and then just die, as if the electricity or the gas was cut.

The truck spent 2 months in the electromechanics shop. They replaced the gas pump, distributor, distributor cap and rotor, plug wires, ignition coil, one of the two oil sensors, and power switch all with new original parts. The computer was also replaced with a remanufactured one, also a new battery was put in. Everything was running well until about 2 months ago when the sporadic dieing started to return. Same as before, the truck runs well, the check engine light comes up and then just dies, but now sometimes it won't start, and sometimes it will.

I have noticed that when you rotate the key to start the truck, sometimes the check engine light will not turn on, but the rest of the panel lights do, in this case the truck will not start. If you rotate the key back and forth a few times the check engine light will eventually turn on and then the truck will start.

The computer is flashing code 22 and code 33 . By my understanding code 22 represents ~ starter signal system or 1988 fuel cut solenoid circuit failure , and code 33 represents ~ map sensor, or fuel injection.

Any ideas ?

Thanks in advance,
Victor

P.S. Also, I don't know if it is a related issue but since this problem has surfaced, my head lights have also died. The low beams won't work but the high beams do, and sometimes they refuse to turn off.

P.S.S. Its doing something new now. The last time it stalled after I got it started, it would only drive in reverse!!! It did not matter what gear you would put it in, it would only go backwards. I managed to get home by stepping out and locking the hubs and putting it in 4 wheel drive. After I got home the problem stopped. Has my trooper gone crazy ? ... or is it me ? :roll:
 

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I feel your pain. I had a 89 Pontiac Sunbird that went electrically nuts on me. It would run until it warmed up and then stall. I would have to wait 5 to 15 minutes to start it again. It would go through the same process 3 times and then continue running with no problems. I took it to the shop but the witch doctor couldn't find the source of the problem. I sold it at an auction and that was the end of it!

I read about this in Tom & Ray's articles all the time. It's usually a short somewhere - it could be anywhere. Some loose wire dangling and knocking into other things. Make sure to check for a good ground connections b/c sometimes when they get corroded or short out they cause the electrical to act up.

Good luck!
 
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