What is wrong with my jeep? fuel pump was replaced today and, new plugs and wires....

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matti0611

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...has gas but wont crank? i changed my fuel pump today but it wont crank. when we got all the parts back on the truck it cranked and i drove it to the store. i wen back home and left shortly thereafter. i drove a couple of miles and i noticed it was acting as if it wanted to go dead. i pulled over and turned it off but it cranked back up. i drove a little furter down the road, it did it again, i cut it off and it acted as if it was trying to turn over but wouldnt. any idea whats wrong?
 
Assuming your Jeep is fuel injected, the problem sounds like a bad fuel pressure regulator. You should start by testing the fuel pressure. If pressure is good, then you'll need to test your fuel injectors. If they check out fine, too, then you probably have an ignition issue. You can perform the necessary tests on the ignition system, too. Most Haynes and Chilton's repair manuals have the proper procedures and specifications for these tests.
 
It sounds like your loosing power , maybe the alternator isn't working right, the ignition module is getting hot causing it to dead out.
 
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