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-   -   Stalls on acceleration (http://www.jeepgarage.org/f107/stalls-on-acceleration-13549.html)

Canyon Dancer 10-03-2010 02:24 PM

Stalls on acceleration
 
My new 2011 V-6 stalls out then recovers when first starting out in the morning. Is there a fix for this? Have another 2011 with the same engine and it does the same thing. Anybody got an idea how to remedy? I have a stop sign about 4 blocks from my house and when I stop and then pull onto the main road, it feels like it is going to stall completely, then when I aggressively push the pedal down it struggles, then feels like a turbo kicks in after about 100 yards or so. It's as though the accelerator pump wasn't working right but with everything computerized on these, it must be something else.

whatevrworks 10-05-2010 01:12 AM

Re: Stalls on acceleration
 
Take it back to dealer to have this fixed asap. Its a new vehicle and should not have these issues. But if you are having this problem with another vehicle you may want to check the fuel quality you are using. Possible water contamination, or possibly you leave you tank almost empty most of the time causing condensation. Try to start your vehicle, leaving it running to warm up for about 30 minutes and then see how it does. If this seems to solve the problem then you may have water issues (water and gas usually separate to some degree when sitting) and once the water is gone you dont have a problem any longer. If this does not fix the problem then you computer is accurately adjusting fuel/air mixture or timing correctly at least until after vehicle is warm.

Lingohocken 10-05-2010 08:58 PM

Re: Stalls on acceleration
 
What part of the country are you located in?

Canyon Dancer 10-06-2010 03:56 PM

Re: Stalls on acceleration
 
I'm located in Loveland, Colorado at about 5,200 feet elevation. I am wondering if the thin air might have something to do with the problem. But surely, Jeep would have anticipated different elevations in their programing, (I hope).

Lingohocken 10-06-2010 11:33 PM

Re: Stalls on acceleration
 
Quote:

Originally Posted by Canyon Dancer (Post 280312)
I'm located in Loveland, Colorado at about 5,200 feet elevation. I am wondering if the thin air might be a combinhave something to do with the problem. But surely, Jeep would have anticipated different elevations in their programing, (I hope).

Running much ethanol in your fuel mix? Long shot, perhaps, but it might be a combination of factors such as the particular fuel and Rocky Mountain heights.

Marlin 10-07-2010 12:10 AM

Re: Stalls on acceleration
 
Wow, insane problem on two cars you have there!

Are you running Flex fuel? Ethanol blends absorb an extraordinary amount of water, though I don't think this is your problem.
Am I right in thinking it's fine once up to full operating temperature?

rdalcanto 10-07-2010 10:58 AM

Re: Stalls on acceleration
 
The v6 and the V8 I test drove In Salt lake (4700ft) ran great.....

mputnik 10-10-2010 10:23 PM

Re: Stalls on acceleration
 
i have the indentical issues on my V6. I've taken it to the dealership and they've updated the car with 2 TSB's, but still no difference. I'll keep on checking.

Lingohocken 10-30-2010 09:53 AM

Re: Stalls on acceleration
 
According to today's Car Talk show, octane is routinely reduced to around 85 at pumps in high-altitude areas. In principle, this could cause confusion with fussy fuel electronics.

Have you tried higher-octane fuel in your area?

whatevrworks 10-30-2010 10:31 AM

Although it's a possibility that octane is the issue. Modern computer control injection systems and electronic throttle should be able to compensate for minor deviations even at altitude. I think down the line there will be a software update an require reflashing the computer. It's the only logical explanation at this point based on the description you have given and others too. IMHO.


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