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Unread 05-02-2004, 10:10 PM   #1
turk
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Join Date: Sep 2001
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Engine rotates but no start

'ello all. So my 98 ZJ 4.0 decided not to start again today after I returned from Dunkin Donuts. It started fine earlier and about 3 hours later I go to start her up and the engine rotates, but no start. I had this happen once before, last week. Though last week it started after 4 attempts. I have seen some posts of similar problems but did not see any conclusive causes (it is entirely possible I just overlooked it).

Any help would be greatly appreciated.

Thanks in avance,

Turk

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Unread 05-03-2004, 01:13 AM   #2
RockPaws
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Hard to say, need more info...
Any fuel pressure? possible fuel pump problem.
Any spark? Ignition problem.
Check all electrical connections, make sure they are secure.
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Unread 05-03-2004, 01:20 AM   #3
djorkboy
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I had the same problem, turned out to be a fuel delivery issue. At 95,000kms the fuel filter was the original factory fitted one, car had been dealer serviced for 6 years without them ever replacing the fuel filter (prestige dealer my a$$, I hope they take more care with the porsches and ferraris they sell), it ended up fouling the fuel pump and the landed-in-australia cost for a fuel pump was $1700!!!

Last edited by djorkboy; 05-03-2004 at 01:22 AM..
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Unread 05-03-2004, 09:58 AM   #4
Texas ZJ1
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Check the ignition coil?

Hunter
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Unread 05-03-2004, 10:13 AM   #5
greasefingers
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Pull the coil wire off the distributor and hold it close to the block. If you have spark, then I would suspect the fuel pump, but I would not rule out the Cam & Crank sensors. Your problem is very difficult and annoying due to the issue being intermittent.
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Unread 05-04-2004, 10:35 AM   #6
cfkingfish
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I dont know how common the crank position sensor going bad is on ZJs, but it tends to be one on XJs of most years. Try checking that out - basically get the codes read on it if you can.

-Christian
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Unread 05-10-2004, 08:56 AM   #7
turk
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Hey all thanks for the input. Due to time constraints I took it to a garage near my house and had it diagnosed (and fixed before I heard the diagnoses). It was a combination of a bad crank sensor and a bad pick up (pic-up). I wish I had more time to diagnose and repair it myself. I would have save at least $120.00 in labor charges and maybe a bit in parts cost. I guess if you do not have a garage and time to work on your vehicle you have to do what is necessary.

Anywho... Thanks again!

Turk
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It doesn't matter what you drive as long as it is a JEEP.

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Unread 05-11-2004, 01:08 PM   #8
Zaphod
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Quote:
Originally Posted by djorkboy
I had the same problem, turned out to be a fuel delivery issue. At 95,000kms the fuel filter was the original factory fitted one, car had been dealer serviced for 6 years without them ever replacing the fuel filter (prestige dealer my a$$, I hope they take more care with the porsches and ferraris they sell), it ended up fouling the fuel pump and the landed-in-australia cost for a fuel pump was $1700!!!

For Fuel Pump replacement issues, check out the link in my sig. It's fooking brilliant. Much love, Swampy

*edit*
Damn, you have to be registered to view it now... that's bull
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