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Unread 09-24-2012, 09:32 AM   #1
RichardZ
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Join Date: Apr 2010
Location: United States
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2006 Grand Cherokee stalling

I have a 2006 Grand Cherokee with the 3.7L engine. It occasionally stalls (or at least almost) as I accerlerate while making a left hand turn and hit a bump at the same time. It will also occasionally stall when I hit a bump large enough to suddenly lift the front end. It only happens rarely, usually as I leave my driveway (left turn with a bump) but it has happened while turning left at an intersection, scary when there's oncoming traffic. Since the engine comes back up to speed almost immediately I'm not sure if it's a full stall. The Jeep service dept. claims they have never heard of it happening and have no idea as to what to do to fix it. Any suggestions ?

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Unread 09-25-2012, 07:15 AM   #2
JeepCares
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Would this describe your issue?

SYMPTOM/CONDITION:
The customer may experience a premature and momentary activation of the Electronic
Stability Program (ESP) system. The premature activation of the ESP system may or may
not be accompanied with the illumination of the ESP indicator lamp located in the
instrument cluster. The customer may experience the momentary ESP system activation
on a “clover leaf” type turn, at speeds of approximately 25 to 40 MPH (40 to 64 KPH). This
could also be described as a lack of throttle response or hesitation. Driving over speed
bumps at a slight angle can also cause the same ESP event accompanied by lack of
throttle response. The customer may also complain of low idle speed.


There was a Service Bulletin (18-014-09 REV. A) for the above complaint that involves reprogramming the PCM.
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Unread 09-25-2012, 03:14 PM   #3
RichardZ
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It could be causing the response I get turning left at an intersection. I have also had an occasional loss in accerleration moving through a cloverleaf. But as a leave my driveway I'm only going 10-15mph, at most. I'll mention it during my next service call. Is there an easy check to see if this software mod was already made ?
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Unread 09-26-2012, 06:26 AM   #4
JeepCares
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The "fix" is reprogramming the PCM.

Look for an “Authorized Modification Label” near the VECI label.
The VECI label is located in the engine compartment on the vehicle hood.

For those of those who may be reading this and don't know, the Vehicle Emission Control Information (VECI) label contains the following:
Engine family and displacement
Evaporative family
Certification application
Spark plug and gap
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Unread 10-01-2012, 09:44 AM   #5
RichardZ
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No AML label under the hood so I need to discuss with dealer.
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