Have Jeep Questions? Ask a Jeep Repair Expert for Answers
Does it run for 2-3 seconds and then die?
Ok, the hard starting may be part of the problem or may be a result of trying to start it several times and it dying. The first thing I need you to do is to remove fuse #34 in the fuse box that is located on left end of the dash for at least 60 seconds. Then reinstall the fuse and crank it and see if it starts and runs now
Ok, sounds good. If you dont have a set of noid lights, I would suggest renting a set from Autozone, Advanced Auto Parts or O'Reillys. They are used to check injector pulse to make sure they are getting good signal from the computer
Correct, the name of them is Noid Lights. You unplug the connector to the fuel injectors and plug the noid lights into the connectors. Have someone crank engine while you watch the noid lights. They should blink steadily indicating injector pulse. If they do not, then there is either a computer issue or short or open circuit in the wiring harness. If they do blink like they are supposed to, then the injectors are getting good signal and issue is else, possibly a weak fuel pump. So if you dont have a fuel pressure gage, rent one of those as well.
Ok, thats good. Has the computer been scanned for fault codes yet? Does it have a digital odometer?
Ok, do you have a scan tool with live data feed as well as it having an oscilloscope?
Ok, does it run long enough to generate crank and cam sensor pulses on the scope to see if they are a regular pattern or irregular blips on the scope
Ok, lets check the injector pulse tomorrow morning and then go from there
You are welcome and have a great evening and Happy 4th of July as well. Will talk with you in the morning
I noticed we have not yet resolved your concern you asked about. I would sure appreciate it if you would reply so I can offer my skills and knowledge and repair guide access to help as best I can.~Do you still need more help?~Confused by my info request or answer?~Need more time?~Confused on how the site works?~Need more detail or a different explanation?If the answer is YES to any of these just press reply and lets work on this concern some more.If you have new questions now or in the future please do not hesitate to ask them. If you would like me to assist you. Just bookmark this page so you can access my profile easy and post a new question from the question box on my profile page.
Please remember to rate service using the rating page so that I may receive credit. Thanks
Please note that if you have a subscription service, you still are required to rate service, however you are not charged again. This is just so that your expert is credited for their time and services. Thank you.