JJsTJ
New Member
I agree its not getting that first squirt of juice to fire up but it stays running good when it is goingSounds like a fuel issue.
I agree its not getting that first squirt of juice to fire up but it stays running good when it is goingSounds like a fuel issue.
I tried that aswell,sometimes a check gauges comes on while crankingTry cycling the ignition and priming the fuel pump repeatedly. After doing that 3-4 times, does it then start right up?
If so, it's your drain-back valve in your fuel pump.
Try cycling the ignition and priming the fuel pump repeatedly. After doing that 3-4 times, does it then start right up?
If so, it's your drain-back valve in your fuel pump.
Hope this isn't considered hijacking this thread but wanted to update my post here as it turned out to be something else that was causing my JT to die after driving for a while and intermittent crank/no start.Just had almost the exact same symptoms on my 99. I replaced the fuel pump and relay and still it would die while driving, this time wouldn't start back up and at my waits end I towed it to the shop.
They replaced the crank position sensor and cleaned up the wiring about 12" from the fuel pump. Still, would run for a few minutes and die. They said the ECU was bad, luckily I had found this forum and had some info/questions to ask, they couldn't answer and so I took it home and started from scratch, literally. I sanded down every ground location I could get to, put things back together and have been fly-n-hi for a few days now.
Cant over emphasis the importance of clean ground even if your test lite says they are good.
I found a bare wire that had rubbed the insulation off on the back of the engine block. Repaired the wire and zip tied the harness up and out of the way.
It was just one in the large bundle and I didn't want to unwrap the areas in front or behind the exposed portionDo you know what the wire goes to?
Okay all, so a new update here. 7 months later and still dealing with the issue. I am now onto the 4th ECM, every time has been a separate set of issues. This most recent ECM is the most promising being that......
1). The fuel pump primes when the key is turned on (before the fuel pump ran constantly and did not start).
2). All gauges respond and all dash lights turn off (before none of this happened).
3). The Jeep starts and sounds beautiful every time (it barely started and idled rough before).
Now the problem is after the Jeep starts it dies about 2-3 seconds later but always restarts. If I rev the engine to try to keep it running it revs then dies. When this happens the exhaust smells like pure gasoline.
Any thoughts???
Dude this thread sucks! I feel for you, even though it's a toy and not a daily driver it's basically an anchor. Your paint and rims look cherry, you need to get this thing sorted and on the road (or dirt)!
I had an identical symptom that you are now describing on an old Cherokee with the 4.0 that ended up being the ASD relay. Head over to the TJ Resources forum, download the PDF manual for your '97, and cntl+f for "ASD" or "automatic shutdown".
Has your shop indicated whether it looks like this thing has had an extensive amount of work done? Perhaps wiring harnesses that look as though they have been reworked, lots of aftermarket equipment, or accident damage?