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Jeep Commander Start Stall and Idle Problems

211 messages,  Last post on Nov 03, 2009 at 8:05 PM

You are in the Jeep Commander Forum. Your Hosts are steve_ & tidester

What is this discussion about? Jeep Commander, Jeep Commander SRT-8, Engine, SUV


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#166 of 211
Re: Are 08 Commanders having this stalling issue as well ? [fanman] by bassman8
Jan 15, 2008 (12:08 pm)
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Replying to: fanman (Jan 14, 2008 1:52 pm)

First, you didn't read further in the TSB regarding low idle speeds. This is what applies in your case. Also, just an FYI, you don't lose steering and brakes. At low speeds you may lose steering assist, but that is really inconsequential. You don't lose power brake assist either unless you're pumping the brakes. You always have about 3 pedal strokes under full assist mode even when the engine stops running. That should be more than enough to get you stopped. Trust me, this will fix your problem.
#167 of 211
Re: Are 08 Commanders having this stalling issue as well ? [bassman8] by fanman
Jan 15, 2008 (1:29 pm)
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Replying to: bassman8 (Jan 15, 2008 12:08 pm)

Reading the TSB, How does ESP premature activation at low idle speed = car dies?
It has always happened when my wife drives so I cant comment on how difficult braking and steering is. I think its the "Oh Sh*! - it happened again!" panic factor more than anything else.
Just picked it up fprm the dealer who says the fix was "flash PCM (Powertrain Control Module) - STAR solution K50951304" and described it as a SW update to prevent the sensor from cutting off oxygen at throtlle and killing the engine. I could not google that fix and have not talked to the tech yet. Any advise where to look to see of this is legit?
#168 of 211
Jeep Commander Stalling by jeeptech1
Jan 31, 2008 (5:40 pm)
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Hey guys. I have been reading some blogs & forums on several complaints about Jeep Commanders stalling while driving. I am a Chrysler certified Tech. I have had some of these vehicles with this complaint at our dealership. I am working with our area Tech rep. to help and try to pinpoint the cause of this problem.I would appreciate as much detail as possible about this stalling issue. Please understand that 99% of these complaints usually cannot be duplicated when the customer brings it in.Some of the following questions may seem odd. but please understand that these jeep vehicles have approx 15-20 on board computers. a very complex can bus network. "controller area network". this operates much like your home pc. sometimes the computers lock up and require resetting.
If you could anwser some of the following questions, I would really appreciate it.
 
1.Does this happen at any particular vehicle speed ?
2.Does it happen on accelleration or decelleration ?
3. What do the instrument panel gauges do when it happens ?
4. Do any other accessories in the vehicle become inop when it happens? ex: radio, headlamps, turn signals, gauges, etc...
5. Are you making or receiving a cell phone call within 3 seconds of this happening ?
6. Were you within 500 feet of a cell tower or radio/ tv tower or any other kind of communications tower or equipment?
7. Was a tractor trailer within 100 feet of you when this happened?
8. Did you notice any vehicles within 100ft around you with large antennas or police or emergency vehicles?
9. Were you within 500 feet of any high tension power lines?
10. Were you driving over a dam that produces hydroelectric power?
11. Were you within 1/2 mile of a nuclear plant?
12 How much fuel was in the fuel tank when this happened?
13. Does it occur more at certian fuel levels?
14. What was the outside air temp when this happened?
15. Is it more noticeable in certain weather conditions?
16. Do you operate any other aftermarket radio or video transmitting equipment?
 
Well this is a start. I know some of these questions sound strange. but trust me. you would be suprised what can affect electronics. Take the issue in the mid 80's to 90's when Volkswagen had a random engine stall issue. The cause was found to be RF "radio frequency" from a passing semi, ie " trucker talking on his cb, which had a linear amplifier attached to it. Thank you very much for your time
#169 of 211
Jeep Commander stall by jeeptech1
Jan 31, 2008 (5:42 pm)
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Please read my post about this.
thanks jeeptech1
#170 of 211
Re: Jeep Commander Stalling [jeeptech1] by tidester HOST
Jan 31, 2008 (9:38 pm)
Reply

Replying to: jeeptech1 (Jan 31, 2008 5:40 pm)

Welcome aboard! I'm sure our member will be able to provide some pertinent information and we're looking forward to your report about what's causing the problem.
 
Incidentally, you have up to 30 minutes to edit a message after posting it.
 
tidester, host
SUVs and Smart Shopper
#171 of 211
Re: Jeep Commander Stalling [jeeptech1] by fanman
Jan 31, 2008 (9:56 pm)
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Replying to: jeeptech1 (Jan 31, 2008 5:40 pm)

"official" reponse from chrysler is the DEcember 2007 TSB fixes it. I had the fix done 500 miles ago so we'll see. Interesting questions but I dont think I have any answers that make you happy. With 14 occurunces, to the best of my recollection it has been all ambients, all speeds, all fuel levels - with no emmitting sources nearby. Radio and lights still work, but power braking and power steering goes away.
#172 of 211
Re: Jeep Commander Stalling [jeeptech1] by bassman8
Feb 01, 2008 (1:16 pm)
Reply

Replying to: jeeptech1 (Jan 31, 2008 5:40 pm)

Hi Jeep tech 1,
TSB 18-049-07 fixes this problem. Please refer to that. Don't waste your time trying to investigate this and figure out what causes it. The fix is known and released to dealers on Dec.13. Just flash any customer vehicle 3.7, 4.7 and it will cure the low speed stalling and the momentary lack of throttle response due to the ESP system.
 
When NHTSA updates their website with Chrysler's response you can read about it there.
#173 of 211
Re: Jeep Commander Stalling [bassman8] by fanman
Feb 01, 2008 (1:27 pm)
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Replying to: bassman8 (Feb 01, 2008 1:16 pm)

my vehicle fails over 40mph, looses power steering and braking,. Chrysyler says this is not possible. So that means they still do not understand the root cause
#174 of 211
Re: Jeep Commander Stalling [bassman8] by jeeptech1
Feb 01, 2008 (5:54 pm)
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Replying to: bassman8 (Feb 01, 2008 1:16 pm)

sorry, but that tsb does not cure this problem, already been down that road. still want to get to the bottom of it. thanks for the info.
#175 of 211
Jeep commander no start by jeeptech1
Feb 12, 2008 (6:40 pm)
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we'll no info on the stalling commanders yet, has been 15 days, I have a 2006 commander with a 3.7 v6. symptom: at random, the engine will not turn over to start. traced problem to a fault in the headlamp to dash wiring harness. The IPM c2 connector, pin#7, F942 circuit. the ignition circuit will sometimes drop out. if you release the outboard lock on the IPM and tilt the IPM upward, the circuit connects. Have harness ordered. Good luck guys.

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