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Old 02-26-2016, 10:44 PM
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Stalling after coming to complete stop

I have a 2011 5.7 Grand Cherokee which has been stalling after coming to a complete stop once the engine is warmed up (i.e. at a stoplight). While slowing to a stop, the tach will drop smoothly but upon coming to a complete stop, one of two things will happen; sometimes it will stall completely and other times it will idle roughly between 300-700 rpm. It always starts right back up after stalling, and will idle fine until driven again. The rough idle will return to normal if it is put in park (or neutral) at the stop.

This has been happening more often and can sometimes be prevented by holding the gas and break pedals simultaneously as I come to a slow stop. None of this has tripped the CEL. I have not experienced any other issues while moving (surging, only after coming to a complete stop). The rough idle will return to normal if it is put in park at the stop (i.e. in a parking lot).

I have checked with Jeep and have been told that all of the recalls have been done. The throttle body and MAF have been cleaned along with a new air filter and crank sensor. Any help would be great.

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Old 02-27-2016, 10:49 PM
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Re: Stalling after coming to complete stop

Welcome to the garage.
Sounds almost as a dragging torque converter clutch. It will normally make the torque converter input and output speed the same, by locking it, which will save fuel and reduce the heat buildup (during constant speed), but it should unlock and make the torque converter do its job while accelerating or standing still.
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Old 02-28-2016, 10:24 PM
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Re: Stalling after coming to complete stop

Quote:
Originally Posted by katyeng731 View Post
I have a 2011 5.7 Grand Cherokee which has been stalling after coming to a complete stop once the engine is warmed up (i.e. at a stoplight). While slowing to a stop, the tach will drop smoothly but upon coming to a complete stop, one of two things will happen; sometimes it will stall completely and other times it will idle roughly between 300-700 rpm. It always starts right back up after stalling, and will idle fine until driven again. The rough idle will return to normal if it is put in park (or neutral) at the stop.

This has been happening more often and can sometimes be prevented by holding the gas and break pedals simultaneously as I come to a slow stop. None of this has tripped the CEL. I have not experienced any other issues while moving (surging, only after coming to a complete stop). The rough idle will return to normal if it is put in park at the stop (i.e. in a parking lot).

I have checked with Jeep and have been told that all of the recalls have been done. The throttle body and MAF have been cleaned along with a new air filter and crank sensor. Any help would be great.

This exact same thing happened on my wife's equinox and it was a bad camshaft position sensor. Know it's not a jeep so it could be something completely different, but every symptom you described was identical.
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