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Topic Review (Newest First)
06-23-2010 10:54 PM
harleyharv Where do you buy your fuel? Some places offer to pay for fuel related problems/repairs if caused by their fuel???
06-23-2010 10:32 PM
madster Thanks guys
06-23-2010 10:05 PM
rtread Years ago I had a similar experience (without the codes). It would run a little while then sputter, lose power and stall. Letting it sit for a few minutes and we could get a few more miles down the road. I'll never forget a road trip from Dallas to Austin that took all day....not a fun day. Turned out to be a bunch of water in the gas tank. The neighbors kid where we were staying in Dallas had played "service station" and used the water hose to "fill er up". My sister found this out after we dumped the gas tank.
Good luck!
06-23-2010 09:31 PM
Riptide63 I was thinking fuel pump as I read your description of what it's doing. I've seen many in-tank pumps cause an intermittent stall, then restart but not take any throttle. Once they start that intermittent stuff, it's only a matter of time before it leaves you in tennis shoe mode.
06-23-2010 06:21 PM
Kate Can you run some CHEM TOOL through it?
It might clean it's arteries.

Chem Tool website
06-23-2010 05:49 PM
530ktm
Quote:
Originally Posted by madster View Post
Well I just got word from the dealership and they figured out that the problem is a clogged fuel injector, low pressure from the fuel pump and bad fuel filter. They quoted me a estimated discount price of $620.00 for parts and $491 for labor. They are sure that replacing the fuel pump, a injector and the fuel filter will solve the jeeps problems. If not, I’m back to square one and out over $1,100 bucks. I just think its weird that it can run fine for a few miles then stall then just start working again then stall and over and over. I figured that clogged injector and bad fuel pump would make it run bad all the time….what do I know.
I was reading this post not realizing how old it was and thinking all the time from your description that it sounds like a clog in the fuel system somewhere. I hope you found it finally.

06-23-2010 05:10 PM
madster Well I just got word from the dealership and they figured out that the problem is a clogged fuel injector, low pressure from the fuel pump and bad fuel filter. They quoted me a estimated discount price of $620.00 for parts and $491 for labor. They are sure that replacing the fuel pump, a injector and the fuel filter will solve the jeeps problems. If not, I’m back to square one and out over $1,100 bucks. I just think its weird that it can run fine for a few miles then stall then just start working again then stall and over and over. I figured that clogged injector and bad fuel pump would make it run bad all the time….what do I know.
06-23-2010 04:57 PM
dkswift
Quote:
Originally Posted by chrisb0108 View Post
Why don't you try a TPS sensor from Chrysler since some other here keep mentioning the ones from autozone don't seem to be good ones?...instead of getting bent over by the dealer, cuz you know you'll get charged an arm and both legs when you go there.
Well he's already replaced at least 100 bucks worth of stuff that obviously weren't the problem. I would say she had a good run and take it to the stealership for a proper diagnosis since he seems to not have a mechanic that he can trust and is nickel and diming his way to a complete rebuild.

I can replace anything on a car (and did for 2 years in a shop), but I suck at diagnosing problems.
06-23-2010 03:37 PM
madster Last thing I tried was unplugging the 02 sensors and my problem continued. I bit the bullet today and drove my TJ to the Jeep stealership that is just down the road from my house. I have tried everything that I could think of and everything that you guys have recomended. My problem persists and I couldn't think of what other parts to throw at my TJ. I hope the stealership can figure out what the issue is and may they have mercy on my wallet!!!
04-28-2010 04:40 AM
Alpha
Quote:
Originally Posted by CityBoy View Post
I'm gunna let others chime in, but it sound like an O2 sensor to me..
I agree^^ I had similar sputtering / stalling issues, and wasn't throwing a code. Turned out to be the upstream O2 sensor. It was an easy one to check out because I unplugged the sensor and it ran fine, plus it turned out to be the cheapest solution after chasing my tail with plugs / cables / sensors.
04-26-2010 07:28 PM
chrisb0108 Why don't you try a TPS sensor from Chrysler since some other here keep mentioning the ones from autozone don't seem to be good ones?...instead of getting bent over by the dealer, cuz you know you'll get charged an arm and both legs when you go there.
04-26-2010 06:37 PM
madster I finally got to drive my Jeep on Sunday and all seemed perfect, no check engine light and I thought replacing the dist. cap and rotor was my fix. Just as I thought that to myself, my jeep shut down on me again. All of a sudden the idle gets so low that if I even try to tap on the gas, it dies. Again it starts right up and idles for a few seconds then dies out. I still have not remembered to remove the cap when the jeep is stalling. Now my check engine light is back on and flashes code 23. This is the first time I get this code and I don't know if this has anything to do with my problem. It seems every time I replace something, a new code shows up. So far I have replaced the TPS, coil, dist. cap and rotor. I pulled out a spark plug, #6, and the plug looked clean. I have been using Autolite AP985 for the past year or so. I'm kinda thinking I have to break down and take my jeep to the dealer for the first time since 1999.
04-14-2010 10:30 PM
Tiburon
Quote:
Originally Posted by 04tjrubicon View Post
can u just clean the sensor?
with spray electrical cleaner
Negative. its a potentiometer and its on a spring return not a matter of being 'dirty' wish it was would have been a cheaper fix
04-13-2010 02:55 PM
04tjrubicon can u just clean the sensor?
with spray electrical cleaner
04-13-2010 02:50 PM
madster Thats a big 10-4, I will check the gas cap if it stalls on me again. I haven't had time to drive it due to heavy rain. I might just have to try another TPS as well if the problem continues. I also checked and I have autolite platinum plugs. I have had them for a few thousand miles and they look good so I don't think thats the problem. Thanks for all the help guys. I really want to get my TJ back to being my "reliable" vehicle. Beach time is coming also.
04-12-2010 04:50 AM
salewis Same thing happened to my 04, but it never completely died, just sputtered really bad at highway speeds. Got the codes ran and came back as a bad TPS. Had it replaced but the problem didnt go away. Like Tiburon said, it ended up that the TPS unit from autozone wasnt good enough. Got one from the Chrysler dealership and now it runs great.
04-11-2010 11:37 PM
Tiburon I just dealt with exactly what you are talking about for 3 months. I went thru 3 new TPS sensors from a parts store. I finnally figured it was something more to it but was wrong. I guess the parts store TPS was sub par. Go to the dealer and get one throw it in and watch your troubles go away.
04-11-2010 11:01 PM
akswinehart I hope that fixed your problem, but if it didn't, next time it stalles open your gas cap and try to drive it, I know you checked the fuel on the fuel rail, but that didn't indicate volume, just a little spray at you (enough to idle for a few sec) it sounds a lot like a fuel vent problem, basically the jeep uses enough fuel (the 1st mile you drive) until it creates negative pressure in the tank not allowing proper fuel flow.

let us know how it turns out
04-11-2010 09:54 PM
madster I checked for spark when my TJ stalled and I got no spark from the plug. I replaced the car and rotor but have not had time to test drive it long enough to get it to stall out. I hope to drive it tomorrow. Thanks for all the help.
04-08-2010 03:10 AM
rrich It has fuel, and it had spark at the coil.

Next step would be to see if it has spark at the plugs.
Do it when it won't start, else it's meaningless.
It should be a thin crispy blue spark, not red or yellow.

No good spark there?
Look closely inside the cap - condensaton?
Carbon or white tracks on the rotor or between the terminals in the cap.

Have you changed plugs recently with something other than what the underhood sticker calls for?
04-08-2010 12:14 AM
madster rrich, the new coil didn't fix my problem. How would I know if my distributor is the problem? Now it drives fine for about one mile then the RPM drop and my jeep stalls. If I immediately try to re start it, it will idle for 30 seconds or so then the rpm’s will drop so low that it dies. After a few minutes it starts up and I can drive it a few more feet before it dies again.
04-07-2010 06:37 PM
rrich Do did the new coil work?

P0441 code - it's not related to your symptom - look under the power brake unit, farther down, look for a vacuum hose that slips off. It again is typical - factory ran the hose in such a way there's tension on it - it eventually slips off and sets that code.
Reroute the hose better and slip it back on. If that was it, the light should go off withing a couple of starts, and eventually the stored code will go away.

Should have said before - look at the coil wire - if there is any whitish burned marks on it - replace it. Those marks are where the spark's been jumping through the insulation. Same with the coil - the whitish marks.
04-07-2010 03:40 PM
madster I drove it to the parts store and it turned off on me again so I checked the valve on the fuel line and it has plenty of fuel to spray at me. I had a friend with me and he checked the spark at the coil, it had spark. I waited a bit and drove it to his house to look at the jeep closer. I noticed that the coil had some cracks on the plastic body so I bought a new one and replaced it and drove to the Advance Autoparts store. It stoped on me a few more times before making it there but I finally made it and got it scanned.

The scanner displayeed P0441 EVAP EMMISSION CONTROL SYSTEM PURGE FLOW FAULT. He recommended I clean the EGR. I had my jeep towed home and have not tried anything else. Now I have a new TPS and new coil.
04-06-2010 03:14 PM
rrich You really haven't given us much to go on, just the fact it dies and restarts later.

While it won't start:
Check for spark - pull a plug wire, slip a Phillips screwdriver with an insulated handle in the end of the wire, hold it close to ground while someone cranks it.

No spark? Pull the center wire out of the distributor cap, put the screwdriver in the wire - from the coil and try it again. Still no spark? Replace coil.

Good spark? There should be what looks like a tire valve on the fuel line by the engine. When it won't start, quickly depress the needle inside it - if you get good spray of fuel it eliminates the fuel pump, lines, cap, etc.

From your symptoms I suspect you have the common problem of an intermittant coil -- they overheat and quit. When they cool down they work again for a few minutes, then quit again.

But do the tests first instead of just throwing parts at it.

Let us know what you find - post it here.
04-06-2010 03:08 PM
mrcarcrazy only bad part is Jeep's fuel filter is attached to the pump...if you replace one, you replace both.

In theory fuel starvation should...in theory...cause a lean fuel mix code.
04-06-2010 02:55 PM
Dadwithajeep
Madster Check Fuel filter

Madster,

I'm brand new to this forum, but I've experienced problems very similiar on other vehicles. One was in a VW, it would run like a champ, then sputter and stall. Let is it set, and I'd go great for a few miles and same thing. I found (and I know I'll get lambasted to for this), but debris had gotten past my fuel filter and was clogging the in line to my fuel pump, as soon as it stalled it would settle back into the line and allow it to start, then it would move slowly back up the line and clog it again. I'm sure you've done it, but I'd check my fuel filter and drain the lines just to make sure no debris is causing this.


Mike
04-06-2010 02:37 PM
madster Thanks guys. I'm going to run it to the autozone ASAP then I will post the results. I haven't gone to the certified mechanic because they will say "fixed it" and I will drive away and it will stall out on me again. I probably need to take a mechanic for a drive with me so he can be there when it shuts down on the freeway.
04-06-2010 01:23 PM
YAHAHA As soon as I find my red stapler, I'll run the TPS report & post it for review.
04-06-2010 01:17 PM
cherokee980 sounds like a TPS problem to me
04-06-2010 10:01 AM
mrcarcrazy Definitely run it by autozone to get all the codes pulled. this will be a helpful place to start. Don't take any of their advice. You shouldn't need a "certified mechanic".

Important note

Just because a code says something doesn't mean that's the exact part that failed. lots of times the codes will point out a circuit like the Camshaft position sensor circuit bank 1. This doesn't always mean the sensor itself is bad. sometimes its a wiring issue, sometimes its some other oddball thing. So don't just buy whatever part the code says. get the codes, post them up, and let the discussion begin - it will save you money and frustration.
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