JeepForum.com

JeepForum.com (http://www.jeepforum.com/forum/)
-   Jeep CJ Forum (http://www.jeepforum.com/forum/f8/)
-   -   Jeep dies suddenly (http://www.jeepforum.com/forum/f8/jeep-dies-suddenly-1543725/)

Gigemags05 07-01-2013 06:32 PM

I have completed the 4.0 swap in my 80 cj and it has run great for 3 months.

So I flat towed it around 500 miles (disconnected the ds) to the beach.

Everything was going great, but today it just died suddenly. I turned the ignition off, put it in park, and started it up and drove on with no more problems for the morning.

This pm, I experienced the same problem. Again, it fired right back up and got us he with no problems.

It's not throwing any codes.

Any ideas? Injectors? Fuel pump? It's a brand new e2000 pump.

OldTexas 07-01-2013 06:35 PM

Quote:

Originally Posted by Gigemags05 (Post 15629846)
I have completed the 4.0 swap in my 80 cj and it has run great for 3 months.

So I flat towed it around 500 miles (disconnected the ds) to the beach.

Everything was going great, but today it just died suddenly. I turned the ignition off, put it in park, and started it up and drove on with no more or

Three possibilities come to mind. First is a fuel filter. Second is the ingnition control module and third is a coil. Any of those three could do that.

SLO_Ken 07-01-2013 06:36 PM

I understand this is a common symptom of an intermittent CPS sensor.

Gigemags05 07-01-2013 06:55 PM

SLO ken, are you saying its a symptom of my cps going out? Or the cps being spaced wrong?
If I have the hesco cps I guess I'd have to order a new one through them?

So I need to check the coil and replace the filter? Both of those are brand new, but that's definitely in the realm of possibility.

Gigemags05 07-01-2013 08:48 PM

Are there any other obvious things to check? I'm going to try and check all these things tomorrow.

SLO_Ken 07-01-2013 09:52 PM

Quote:

Originally Posted by Gigemags05 (Post 15629954)
SLO ken, are you saying its a symptom of my cps going out? Or the cps being spaced wrong?
If I have the hesco cps I guess I'd have to order a new one through them?

So I need to check the coil and replace the filter? Both of those are brand new, but that's definitely in the realm of possibility.

It's a symptom of the CPS going out. I'm pretty sure Hesco uses the OEM sensor on a custom bracket/balancer. You should be able to get the sensor from the local parts store, or someplace online. I think I got mine at RockAuto for less than $50.

Gigemags05 07-01-2013 10:06 PM

Alright thanks.


I'll look into it. Pretty disappointed that my jeep is, for all practical purposes, shut down for our trip. We were heading to the national seashore to explore when it started acting up.

Gigemags05 07-11-2013 06:30 PM

I checked all the suggested causes out and they all seemed to be good, other than the cps. Not really sure how to check that out.

It actually has been running great the last week, but today it does twice. Seems to happen when I'm coming out of a turn.

I'm thinking ken was onto something with the cps.

RWise 07-12-2013 05:03 AM

Quote:

Originally Posted by Gigemags05 (Post 15667224)
Seems to happen when I'm coming out of a turn.

Until this I was with the cps, but now I have to ask, has the pick up tube in your fuel tank been checked lately? They can rust off or rust a hole in them, then when you turn the tube (or the hole in it) is above the fuel and it dies (no fuel pressure), you stop, the fuel pump grabs fuel again and off you go!
Good luck!!

EDIT this should get worse as the fuel level goes down if it is the pick up tube!

Gigemags05 07-12-2013 08:07 AM

No I haven't checked it.

Any advice on how to check it?

LumpyGrits 07-12-2013 10:34 AM

Check your ign switch & wiring.
Die'n while com'n out of a turn is tell'n me it's a contact issue(MAYBE),inside the ign switch.
Also, the reason you see no codes, also makes me think ign switch issue cause the eng. 'thinks' you turned it off.
LG

Gigemags05 07-12-2013 10:57 AM

Dumb question:

When you say check the ignition switch and wiring, how do I do that? I'm not sure where to start.

LumpyGrits 07-12-2013 11:05 AM

Let GOOGLE be your friend.......:thumbsup:
http://www.jeepforum.com/forum/f8/ig...-test-1220614/

Lots of info out there.
LG

LumpyGrits 07-12-2013 12:58 PM

Quote:

Originally Posted by Gigemags05 (Post 15668671)
No I haven't checked it.

Any advice on how to check it?


FILL the gas tank and drive it.
Where is the FP mounted? Is there a filter before the pump?
Also check your ele. fuel pump and it's wiring.
Make sure the fuel line connections are good and 'tite'.
LG

Gigemags05 07-12-2013 01:08 PM

Fuel pump is mounted as close to the tank as I could get it right along the rear crossmember.

Yes there is a new fuel filter before the pump.

All lines and connections seem good.

I went ahead and pulled the switch. It was awful dirty and one of the connections didn't seem good so I just replaced it.

If the problem persists I'll at least know its not the ignition switch.


The time now is 06:24 AM.

Powered by vBulletin Version 3.8.4
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.