Jeep Wrangler Forum - Reply to Topic
Jeep Wrangler Forum

Go Back   Jeep Wrangler Forum > YJ Jeep Wrangler Forum > YJ Tech Forum > YJ stalls . . . sometimes

Join Wrangler Forum Today


Thread: YJ stalls . . . sometimes Reply to Thread
Title:
  
Message:
Post Icons
You may choose an icon for your message from the following list:
 

Register Now

In order to be able to post messages on the Jeep Wrangler Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Additional Options
Miscellaneous Options

Topic Review (Newest First)
08-30-2011 06:29 AM
stik This might help everybody......I had a bad ignition coil. Runs great no stalling....
08-29-2011 05:23 PM
Garyk A bad sensor will make it stall, surprised its even running, usually it will start and then stall.
08-29-2011 03:06 PM
Redrider94
Quote:
Originally Posted by mk2davis
Yes, it's another newbie with a probably simple question. I have an '91 YJ 4.0L auto with 38k miles that stalls sporadically.

Today the wife and I drove 100 miles, filled up for gas, drove another 15-20 miles, was turning left onto the trail, and she died. YJ, not the wife.

Started up, drove 100 meters on the trail, stalled.

Check engine light flashed code 11, CPS. I have one of those! Changed sensor, and ran great! Then is stalled, maybe 10 minutes later.

I was able to limp the Jeep about 40 miles, during which it stalled 20+ times. When it starts, it starts strong. Sometime it stalls for .2 second and restarts itself, sometimes I have to come to a complete stop wait a minute or two, and then it starts.

When it stops running but I keep my foot on the gas a little (it would sometimes restart this way), it backfires.

Sometimes the motor runs for a few seconds, sometimes several minutes - tends to run longer after it has rested for a while.

The fuel rail had pressure, I am no longer getting the CPS code, although still getting code 12 and 33 on the Check Engine Light).

I guessing/hoping for bad gas? Does that happen anymore? I will also be swapping out the fuel filter. Someone please correct me!
You will always get code 12&33
Code 12 = battery disconnected recently
Code 33 = a/c clutch relay this one will show up even if you don't have a/c
Code 14 = map sensor
08-29-2011 02:34 PM
stik Did you ever figure this out....my 92 has same codes...I do not know what to do ...it is stalling bad.
05-31-2007 07:48 PM
Hackle Check the fuel lines to see if they are close to the exhaust. I sounds like you may be getting a vapor lock and that would create the codes you are getting. HTH
05-31-2007 06:57 PM
mk2davis It stalled again, so I am going to replace the Fuel Pump Relay, Auto Shutdown Relay, and A/C Relay (I have a/c, don't know why that one is missing). I'm suspect that the relays are being affected by the heat, but that is just a guess.

I'm also going to spread dialetic grease on all the large fuses.

I looked my distributor cap over, don't see any cracks.
05-23-2007 11:57 PM
mk2davis F@ck me this is frustrating!

I replaced the fuel filter (facing the right way this time), and put some additive to "blend" the water that I suspect to be in my fuel tank, and cleaned up the engine grounding stap. Runs like a champ for two days.

My brother welded the hole in my exhaust down pipe put their by previous owners to pass smog (love CA!), and 15 miles later, it stalls. But this time there is good news - error code 14.

Here is my question, error code means that the MAP sensor is producing unacceptable voltage, or receiving unacceptable voltage? Now what?

I feel like a monkey, just scratching my head.
05-20-2007 11:36 PM
mk2davis Someone else suggested the engine ground strap. anyone else have ideas? How do you get rid of 18 gallons of gas?
05-20-2007 07:39 PM
Odd is he Sounds like bad gas to me.

Try some "Dry gas", should do the trick
05-20-2007 06:52 PM
mk2davis
YJ stalls . . . sometimes

Yes, it's another newbie with a probably simple question. I have an '91 YJ 4.0L auto with 38k miles that stalls sporadically.

Today the wife and I drove 100 miles, filled up for gas, drove another 15-20 miles, was turning left onto the trail, and she died. YJ, not the wife.

Started up, drove 100 meters on the trail, stalled.

Check engine light flashed code 11, CPS. I have one of those! Changed sensor, and ran great! Then is stalled, maybe 10 minutes later.

I was able to limp the Jeep about 40 miles, during which it stalled 20+ times. When it starts, it starts strong. Sometime it stalls for .2 second and restarts itself, sometimes I have to come to a complete stop wait a minute or two, and then it starts.

When it stops running but I keep my foot on the gas a little (it would sometimes restart this way), it backfires.

Sometimes the motor runs for a few seconds, sometimes several minutes - tends to run longer after it has rested for a while.

The fuel rail had pressure, I am no longer getting the CPS code, although still getting code 12 and 33 on the Check Engine Light).

I guessing/hoping for bad gas? Does that happen anymore? I will also be swapping out the fuel filter. Someone please correct me!

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off


All times are GMT -5. The time now is 03:31 AM.



Jeep®, Wrangler, Liberty, Wagoneer, Cherokee, and Grand Cherokee are copyrighted and trademarked to Chrysler Motors LLC.
Wranglerforum.com is not in any way associated with the Chrysler Motors LLC