Question about Cars & Trucks
I Chang a new fuel pump new camshaft new crankshaft still my jeep dont ,start only when I put start fluid then dies what will be the problem ..also when I disconnect and put back the battery the jeep try to start whit out the key on also the IAC make noise
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Posted on Jan 02, 2017
Take the fuel line off before the filter and turn the key on and see if you get any fuel out of the line. If you don't get any fuel unplug the wire connector to the fuel pump turn the key on and see if you get a hot wire going to the pump. if you get a hot wire then it is your pump. If you do not get any hot wire then it should be the relay.
Posted on Mar 21, 2009
Mine did the same thing, I also replaced the crank sensor and it did not solve my problem. I replaced the fuel pump relay and it ran fine ever since. Try that, it's a cheap item, and easy install.
Posted on Jun 08, 2009
you need to have it connected to an OBD2 machine and watch if you are missing the cam sensor showing RPMs
or if your missing crank sensors RPMs,
it could be a wiring problem or computer if your seeing the RPMs from both sensors,and the last thing i would check is hooking up a fuel gauge to the reed valve and watch what fuel pressure you have while cranking,if the cam sensor is the culprit it will turn the fuel off after the cranking.
Posted on Jan 12, 2010
Two items that fail most frequently are the fuel pump (which you replaced) and the crank position sensor (11 o'clock on the bellhousing looking from the rear) That can also give you similar symptoms. Problem is it may give you good readings if you test it while it's working correctly. It's a pain to install and isn't very cheap so, I suggest you get a haynes or chilton manual and a digital multi-meter and follow test procedures before buying anything further. Could be that or just a loose wire somewhere. You can also get a code test done free at most major parts outlets. Won't hurt to have that checked as well!!
Good luck...any questions about specific parts etc, just ask!!
Posted on Feb 13, 2010
Testimonial: "Thanks for the two that answered my question. I had the crank position sensor checked and it showed up bad. I changed it and now it runs great. Thanks"
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