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Old 04-18-2012, 12:47 PM   #1
Join Date: Mar 2012
Posts: 4
Please help diagnose my problem!

I was driving down the road at about 20 or so when my jeep started sputtering and went dead. I started it back up and after giving it gas it kicked on for a few seconds then died again. I was told that it may be a fuel pump but I just checked the fuel pump relay and it works. I checked to make sure its getting power and I hear the buzzing from it so it's working. I checked the rail and it is getting pressure. So all signs are pointing its not the fuel pump. I had even put its a full tank of gas in it a couple of days before it went out. Everything else seems to be working properly as far as the electrical parts and the spark plugs all look good visually. I was told that it may be my coil though and I have no idea how to diagnose that.
The only thing that could have messed up my jeep is that I went over a really shitty speed bump that knocked my jeep a good bit but nothing it hasn't done before. I'm worried it may have knocked something loose but I haven't found anything that looks like it as of yet.

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Old 04-18-2012, 02:10 PM   #2
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Join Date: Dec 2008
Posts: 4,333
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If you're getting fuel and air, the only other issue it could be is spark. I could help on a 4.2 but not a 2.5.

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Old 04-19-2012, 02:52 PM   #3
Join Date: Mar 2012
Posts: 4
I have a 1995 jeep wrangler YJ.
4.0 liter straight 6 cylinder.
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coil , not starting

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