Question about Jeep Cherokee

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Ok again. forget what money i put into it. Right

Ok again. forget what money i put into it. Right now, it drives about 1/2 mile, then dies. Wait half hour or longer and then starts, runs and go's another 1/2 mile and dies. All new head, plugs, coil, fuel pump,fuel filter, tune up. Im an old school mechanic from the 70s, What could be this problem? Relay? 1987 jeep cherokee, 4.0 liter, 4x4, auto. Thank you for your help!

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First..you need to find out why it wont start after it dies... ck spark? ck fuel pressure? ck injector pulse?ck for 5volt reference voltage at throttle position sensor?old school hasnt changed much, you still need fuel, fire, and compression, we KNOW compression is OK, so you need to find out what you are losing. spark or fuel? drive it with fuel pressre gauge, should be 40-45psi. ASD relay is a big player.

Posted on Oct 01, 2009

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I dont know if this may help or not but 87-91 jeeps had bulhead and wiring problems at the firewall area,
also had distributor and computer problems. relays were also a problem with tese vehicles. Good luck with your problem

Posted on Oct 01, 2009

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Go's half mile and dies.


First I would say less than a $1000 would have repaired your original issues,assuming there were several. How was it running and did the current problem start after all the work was done? Also, what you invested in money and parts ,I hope went to fix different issues.

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