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Old 09-08-2013, 08:25 PM   #1
adam1997's Avatar
Join Date: Mar 2012
Location: cibolo
Posts: 61
no spark/no fuel pressure

i have a 1997 tj 4.0sport i was driving and it just died. I check fuel lines and all look good.The fuel pump is less than a year old and i replaced the coilpack but still no start. I plan on taking it to the shop but if yall can help me it would save me alot of money...............

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Old 09-08-2013, 09:49 PM   #2
Knows a couple things...

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Jerry Bransford's Avatar
Join Date: Nov 2005
Location: Escondido, Calif.
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That makes me think bad Crankshaft Position Sensor which provides the engine's master timing signal. When the computer doesn't get its expected signal from the CPS, it disables the ignition and fuel pump. The CPS is mounted up high on the driver's side where the transmission bolts to the engine.

Good luck with it, I hope it is something that inexpensive to fix.

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Old 09-10-2013, 06:20 PM   #3
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thank you so much...
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Old 09-10-2013, 07:47 PM   #4
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If you PM me with your email address I can send you the testing procedure for that sensor.

But the wisdom that is from above is first pure, then peaceable, gentle, and easy to be intreated, full of mercy and good fruits, without partiality, and without hypocrisy. James 3:17 (KJV)

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Old 09-15-2013, 02:10 PM   #5
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Location: cibolo
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thanks guys i found the problem. a wire was on the exhaust and melted witch was shorting out my fuse.
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