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Discussion Starter #1
I am not sure where else to put this and my google fu seems to be failing me.

2006 Jeep Command Limited 5.7

Here it is. When cold (30-40) I let the car warm for at least a minute or 2 then I pull off. When I get to my second stop maybe .25 miles to .3 miles from the house the Commander wants to stall. I can feel the car shake as a warning and if I left off the brake and roll a little I can stop it from stalling but it will persist at every stop until I let it stall or the car fully warms up. After the stall I have seen a few more stalls but it is not always consistent.

There are no codes thrown that I can find. I do see the RPM's drop off. The only thing I have done since this started was fix a leaking transmission seal. I replaced both filters and the gasket. And I had a leak in the front passenger side CV joint. I replaced the inner race and the oil seal.

Any suggestions though ideas?
 

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I can not answer that. I have not done it I am at 78k.
I would change them then. They should be done every 30k on the Hemi, and they are finicky about proper plugs. Make sure to get the factory copper plugs, don't bother with platinum or iridium.

Not saying this is definitely your problem, but that does cause a lot of people trouble.
 

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Discussion Starter #6
I am going to try replacing the spark plugs and see where that gets me. As for the cracked Transmission Filter I am not throwing any codes and this has been going on for about 2 months now. Also I personally changed the filter and inspected it prior to installation. I found no cracks and did not over tighten it so I do not believe this is related. While I could be wrong I am going to go with my gut on the transmission filter for now.

 

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I am going to try replacing the spark plugs and see where that gets me. As for the cracked Transmission Filter I am not throwing any codes and this has been going on for about 2 months now. Also I personally changed the filter and inspected it prior to installation. I found no cracks and did not over tighten it so I do not believe this is related. While I could be wrong I am going to go with my gut on the transmission filter for now.
Keep us updated. Hopefully it is as simple as a spark plug change.

Here is a write up if you need it:

http://www.jeepforum.com/forum/f67/hemi-spark-plug-change-write-up-1015332/
 

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Discussion Starter #8
I changed the spark plugs today and the idle does seem to be more regular. Also the plugs I pulled were WAY outta spec. Like .057-.063. Hopefully this does resolve it. Unfortunately I will not know for sure because in the South East US we are having some crazy warm weather. Like 70 degrees F the last few days.
 

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I changed the spark plugs today and the idle does seem to be more regular. Also the plugs I pulled were WAY outta spec. Like .057-.063. Hopefully this does resolve it. Unfortunately I will not know for sure because in the South East US we are having some crazy warm weather. Like 70 degrees F the last few days.
Mine were even a little worse than that when I replaced them, I was getting misfire codes. Even if it isn't the fix, it appears they needed to be done anyways so, glad you got that out of the way.
 

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Without a doubt, the biggest symptom of eroded away spark plugs (i.e. way over due to be changed) is stalling at idle, especially a cold motor in cold weather, rough idle, poorer performance and mileage. So being overdue for new plugs and having stalling, you did the first thing you should have, hopefully that will solve it.

Higher than recommended octane fuel can cause a cold motor to stall in very cold weather. Higher octane fuel is less volatile and thus vaporizes poorer than lower octane fuel, colder weather also makes it harder to vaporize and a cold motor is very sensitive to poor vaporized fuel. I.E. a bunch of drops and puddles of fuel are coming out of the injector into the cylinder, instead of a vapor of fuel going into the cylinder.

Fuel Injector cleaner can help, Chevron Techron most agree is the best and makes a difference.

But, really, you need to use the recommended octane for your motor, it designed to run off the fuel with those properties. Extra Octane really gets you nothing, so just use the recommended octane.*

*Higher Octane Fuel is also a little higher quality, it also uses a little less alcohol than the lower octanes, so that might account for the little better mileage that some folks have been able to measure when trying higher than recommended octane.

But if I was stalling a cold motor in cold weather, I would switch back to the recommended level of octane.
 

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5.7 hemi stall at stop signs

New to the forum.... Here is what i got. 2006 commander, 5.7 limited, 104000 miles. Bought in august of 2014, in really good shape. had a few lights in the EVIC, made all go away except stupid "service tire pressure system"( dont get me going on that one). I am a preventive maintenance freak. last september, i did a tranny fluid/filter change, new sparkers (black tip 570 champions) air filter, pcv, new strut assm, rear shocks, all fluid changes in drive train, brakes in front/rear, lower control arms up front, new bushings on stabilizers, regular tire rotations. all is well in jeep land. I've actually owned jeeps for 30 years. sold my 1998 cherokee last august with 242000 on it. Love my new one, HATE some of its "tech".
onto the heart of this. Around christmas time, it started to stall at stop signs. I became increasingly concerned because of the safety aspect. Its particulars where this. would approach a stop sign, hit the brakes (normal stop), it would stumble to 300 rpm and either catch itself and go up to 700 or die. I could slowly approach the corner, and keep it from stalling, but not stumbling to 300 rpm. I then started to slip it into neutral at the stop. NO stalling, ever, when i did this. I started the infamous google search(why i joined this forum also) and came up with all kinds of ideas- some really messed up, some logical. Granted, we all have our own approaches, but I've been selling parts to pros and amateurs for over 30 years, have wrenched on all my own (plus many others) for as long. I have taken my vehicles to the dealers for repairs (minus warranty and recalls) exactly ONE time. I have to figure it out. Well, tried some of the stuff I read, and then applied my own theories and solved it. The slipping it into neutral trick got me thinking...messed up torque converter - lock/ unlock issues. bingo. instead of the leaking seal around the tube of the PAN filter(which was fine and dandy), the spin on filter had unspun enough to suck air. bubbly fluid, torque converter no likey. problem solved. This problem could be very sporadic in nature. It seemed to get worse as it got colder, and on cold runs, but it would not always show its bad side. So......if you got the mystery stall, this is DEFINITELY a cure for one of its personalities. thanks for the help
 
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