having problems with jeep!

[flnngabriel]

its not starting, the battery and ALT. were replaced on Feb.14th. i took the ALT., starter and battery to autozone to have them checked out. they checked out fine. so i replaced the ignition switch and the headlight switch today and still nothing. its a 93 xj W/ 4.0 Auto. any thoughts would be helpful! thanks

[alosix]

Is it cranking but no start?

that would lead to either a fuel pump issue or the Crank Position Sensor goign bad. CPS die pretty often, followed by the fuel pump.

Jaosn

[BIGdaddy]

Two idea's

A. check your CPS sensor with a multi-meter. If it reads 0.00 ohms you'll likely need a replacement of the sensor itself or the wiring going to it. The CPS will cause a non-start symptom and is a common repair/cheap part.

B. Get yourself a length of 10-12 gauge wire and jumper the white fusible link that is on the
driver-side fender. This link (no idea what it does) will also cause a non-start.

Check these both out and then post up what you find. These are both very common and very simple/inexpensive (less than $50.00) fixes

[baca327]

Could also be the neutral safety switch if an auto.

[BIGdaddy]

Could also be the neutral safety switch if an auto.

yup, good point. mine is a bit sticky, but will always start in N if needed...

Try that, too, flnngabriel.

something makes me think that 1993's don't have the same issue as 1991's and 1992's though. Something
about them removing or improving the NSS.

[flnngabriel]

its not even cranking over. i tried to start it in N to no avail. its dark now and no lights or garage to work in so ill start up again tommarow. prob around noon as i need to go to the scrap yard to get money for parts. thank you for your suggestions thus far and ill keep you posted! sincerly Flynn and Savannah

[kc0tma]

its not even cranking over. i tried to start it in N to no avail. its dark now and no lights or garage to work in so ill start up again tommarow. prob around noon as i need to go to the scrap yard to get money for parts. thank you for your suggestions thus far and ill keep you posted! sincerly Flynn and Savannah

So if it doesn't turn over, does it at least make a repeated clicking sound or does it do absolutely nothing at all?

[flnngabriel]

Its not doing anything not even the clicking sound.

[alexfm]

Then you're not getting power to the starter or your starter is dead. Check the leads on the battery (try twisting them), and check the ground (the short wire) to the body.

It could be something else that is preventing power going out, though. You should check or ask on NAXJA.

My XJ does that occasionally too, in my case at least, it turned out to be the ground wire from the battery had come loose. Im planning on making new battery cables soon, so you may want to consider that as well.

Alex.

[BKCowGod]

every time this has happened to me it's been the starter solenoid. Kragen/Autozone/Checker/Whoever will test your starter for free.

[flnngabriel]

we put a trickle charger on it left it for about an hour then tryed to start it. it clicked a few times then nothing. once we took the charger off it did nothing again

[BIGdaddy]

we put a trickle charger on it left it for about an hour then tryed to start it. it clicked a few times then nothing. once we took the charger off it did nothing again

:Wow1:

[OverlandZJ]

Have you cleaned the batt terminals and cable ends? Corrosion will prevent current from flowing cleanly.

Your starter solenoid is getting juice to click but not enough to turn the starter over. You have either a bad battery, bad cables, or a bad starter.

My money is on the starter.

[OverlandZJ]

You can self test the starter if you have jumper cables.

[flnngabriel]

overland, how do we do that?

[Canadian Moose]

its not starting, the battery and ALT. were replaced on Feb.14th. i took the ALT., starter and battery to autozone to have them checked out. they checked out fine. so i replaced the ignition switch and the headlight switch today and still nothing. its a 93 xj W/ 4.0 Auto. any thoughts would be helpful! thanks

I had this same problem. To summarize... Everything powered on but I was get no noise from the starter. I "hot wired" it to confirm that the starter was fine. Then I proceed to clean the Neutral Safety Switch which fixed the problem.

Details here http://www.jeepforum.com/forum/f11/4l-4l-engine-swap-have-power-but-wont-turn-over-947105/#post8693647

Good Luck :elkgrin:

[flnngabriel]

We just checked the igniton coil and it tested fine we also tested the starter soleniod as well........im not sure where to go from here.

[OverlandZJ]

overland, how do we do that?


Pull your starter. Hook jumper cables to your battery, ground to the bolt ear.. then touch positive to the stud where batt cable runs to on solenoid.

If it runs it's your batt cables or connection to batt.. pos or ground somewhere.

[bat]

If you get a clicking sound from the starter take a hammer and lightly tap on it while turning it over. You can get a flat spot on the starter and light tapping usually gets it move.

[kc0tma]

I too had the same problem once, but it was pretty random and sporadic. It wouldn't start some times (no clicks or anything) but others it would fire up perfectly. My dad helped me trouble shoot it and what he did was put the key in the "on" position so that he could put the tranny in drive or reverse, then roll it a tad and then kick it back up into park. Your starter is just an electric motor, and inside where the brushes contact the commutator my dad suspected that the little point or whatever it is called where the brush sends power to the coil in the comm was bad. So by rolling the vehicle and jamming it into park it turned the commutator in the starter a little bit and the brushes were touching it in a different place. The couple of times it has done it to me since then I've done what he told me and it started up right away after that. So the fix for this problem would be to replace the starter.

[ColoCherokees]

FWIW, I've had starters, alternators and batteries that all "tested good" at a parts place, and turned out to be not so good - take the Autozone "test" results with a large grain of salt.

My '96 XJ had a no-start condition similar to yours a couple years ago - the "tests" indicated batt, alt and starter were all fine. The batt was a few years old, so I gambled on a new one - no dice. Problem was the starter - wish I'd known about the above mentioned starter/jumper cable test back then!

[flnngabriel]

thank you to all for your help. we got it fixed:wings:. turned out to be the starter. but then there was a conection that had come loose underneath the steering colum. but everthing is good now. we replaced the igintion switch, and the headlight switch as well.

[BIGdaddy]

yay!! good on ya!

glad it was something fairly common/simple. (tough/frustrating as it might have been to diagnose..haha!)

[HenryKrinkle]

There is also a major ground near the oil filter. This may not cause a no-start situation, but it has been known to cause other sensor problems. Just make sure it's clean and tight.
With electric motors like starters, wiper motors, etc you can tap them with a hammer (not super hard). This help dislodge the spinning part that binds up. Ideally you'd just replace the motor, but it can work if you're in a pinch...

[Mr. Leary]

Glad you got it figured out. Jeeps can be a little weird sometimes. I worked on a YJ one time that would not start because the O2 sensor was unplugged.

[Root Moose]

Ha! That IS weird!