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Old 08-24-2014, 10:19 AM   #1
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Engine quit

I moved my 1999 6 cylinder 4L automatic from my garage this morning and parked it outside. When I went back a few minutes later to use it, the starter was turning the engine over but it would not start, not even a slight kick, just completely dead as though something had been switched off. can anybody suggest what the problem is?

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Old 08-24-2014, 12:13 PM   #2
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You lost spark, fuel, or compression. First thing to do is scan for any codes. If there are codes diagnose the code if it is possibly related to a no start, if no codes are stored it is unlikely that you lost compression so check for spark and fuel pressure first. See which one it is, or both, and work backwards from there. A number of things can cause this.

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Old 08-24-2014, 12:32 PM   #3
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Thanks for your reply, I do not have a code reader so I guess that I will have to wait until Monday to find a tech. that can have a look. That will not be too easy in this small town in Mexico. Could I tow it to a repair shop? It is a 1999 automatic.
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Old 08-24-2014, 12:45 PM   #4
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First check spark at a plug end of plug wire

Next assuming you have fuel check rail pressure

If rail pressure adequate listen to injectors or connect test light and verify fuel injector pulse

If all that checks most likely jumped timing chain

Pull all plugs and do a good compression check

After these tests you should know where to look
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Old 08-24-2014, 12:46 PM   #5
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Yes, you can tow it to a shop. Throw the transfer case and trans in Neutral.

If you have some basic tools like a fuel pressure tester and voltmeter you could try doing some tests on it yourself with out a code reader. Also If you have any starting fluid, propane, brake parts cleaner, or something similar you can spray a bit into the throttle body and see if it fires up. If it does fire up it is not getting fuel. If it still does not start then it is a spark issue.
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Old 08-24-2014, 01:07 PM   #6
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Thanks, is safe to tow it with the transfer case and trans in neutral, behind another car. I will not have power steering or power brakes
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Old 08-24-2014, 01:17 PM   #7
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No transmission not in neutral or and damage only transfer case in neutral

Read the owners manual
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Old 08-24-2014, 01:32 PM   #8
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Yes you can tow it behind another car but you will need to be careful of course with no power steering and no power brakes.

As Digger84 stated, put the transfer case in neutral but the transmission in park (unlike I stated earlier).
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Old 08-24-2014, 01:37 PM   #9
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OK, Thank you. Transfer case in N and Trans. in P.
Looks as though I will have to give it a shot and get it to somebody in the village that might be able diagnose the problem. Just hope that I can stop it behind my Cherokee!!
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Old 08-24-2014, 01:46 PM   #10
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Try unplugging and then reconnecting the crankshaft position sensor's electrical connector located near the bottom of the firewall on the driver's side. This problem might be CPS related and sometimes reseating it's connector can temporarily get it running again. The CPS is what provides the engine's master timing signal, it is mounted up high on the driver's side where the transmission bolts to the engine. That CPS location is assuming you have the 4.0L engine.
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Old 08-24-2014, 03:07 PM   #11
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Do I get at that connector from underneath the vehicle or in the engine compartment
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Old 08-24-2014, 03:15 PM   #12
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Quote:
Originally Posted by LS13 View Post
Do I get at that connector from underneath the vehicle or in the engine compartment
Engine compartment. Manifold side of engine.
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Old 08-24-2014, 03:28 PM   #13
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I can not find a diagram of fuse location (engine compartment) so far all the charts that I have managed to find, do not match what I have got. I have a 1999 6 cylinder 4L Sahara Automatic. Has anybody got a picture of the correct fuse block with names of fuses.
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Old 08-24-2014, 03:34 PM   #14
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Fuse location for the CPS? There isn't one if that's what you're asking about. The fuses and relays are identified on a label under the cover.
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Old 08-24-2014, 03:58 PM   #15
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Thanks Jerry,
Unfortunately I have not got that label under the cover, that's why I am trying to get a diagram.
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Old 08-24-2014, 04:03 PM   #16
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If you want to read the codes you can do so without a reader in a wrangler. Just turn the key to the auxiliary position three times quickly. (The position just before you start the engine). The dash will give you the codes if there are any and you can look up the code number it gives you on the internet to see what the problem is.
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Old 08-24-2014, 04:17 PM   #17
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That key technique to display the diagnostic trouble codes doesn't work in '98-99 Wranglers, at least not U.S. Wranglers. Not sure if it works in export model Wranglers like the OP's likely is.
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Old 08-24-2014, 04:28 PM   #18
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I have tried the key technique holding down the trip meter button at the same time. All the dials and gauges move through their range and then the odometer reads down from 999999 or something like that to 1111111, then it just shows the current mileage. At one time a reading of 2.5 showed up for a moment.
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Old 08-24-2014, 04:50 PM   #19
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Pushing the trip meter reset in while turning the ignition switch only cycles the instrument cluster gauge indicators. It doesn't run the diagnostic routine like it does for '97 and 2000 or newer TJs.
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Old 08-24-2014, 05:18 PM   #20
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OK. It's now after 4 on Sunday in this little Mexican Village, so I guess I'll have to try and find somebody tomorrow with a code reader. Hope that they can come to me rather then having to tow the Wrangler with a dead engine. I will post again tomorrow, to hopefully reveal the trouble.
Thank you to everyone for your help and suggestions.
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Old 08-24-2014, 05:28 PM   #21
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Pull the ignition coil's ignition wire out of the center connector on the distributor cap and see if you're getting spark out of the ignition coil as you crank the engine.
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Old 08-24-2014, 05:29 PM   #22
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This is pics from my 98 4.0 should be close
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Old 08-24-2014, 05:33 PM   #23
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If he won't even check for spark we are just spinning out wheels

You don't even need tools to check for spark

As long as we are just guessing my guess his power wire to an o2 sensor shorted and blew fuse killing spark and/or injector pulse by cutting their 12 volt source

2nd less likely but possible is stretched timing chain jumped a tooth or more
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Old 08-24-2014, 05:35 PM   #24
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As far as codes did he even say his check engine light was illuminated if not unlikely to find codes
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Old 08-24-2014, 06:13 PM   #25
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Looks similar, but what does each fuse relate to
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Old 08-24-2014, 06:28 PM   #26
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The first pics are the sticker top and bottom from inside of lid that labels each fuse and relay

I post an online link where you can view the FSM

It is at the knowledge base
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Old 08-24-2014, 06:29 PM   #27
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Wow! I pulled the ignition coil central wire off the distributor checked for spark... it was OK. Put the wire back and pushed it right down, tried to start once again and BINGO!! Runs like a bird.

Could it really just have been a bad connection at the distributor cap? Sounds too easy.

I have started and stopped a few times..., no problem
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Old 08-24-2014, 06:30 PM   #28
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Well it won't run without spark for sure


Link I promised

http://www.jeep4x4center.com/knowledge-base/
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Old 08-24-2014, 06:43 PM   #29
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Thank you, lets see what tomorrow brings

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