2005 Grand Cherokee idles rough and stalls when im at red or stop light.Help anyone?? - JeepForum.com
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Unread 01-03-2011, 08:57 PM   #1
hex312
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2005 FSJ Cherokee 
 
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Location: Chicago, Illinois
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2005 Grand Cherokee idles rough and stalls when im at red or stop light.Help anyone??

i have a 2005 grand cherokee laredo 4x4 4.7 liter v8 with 88,000 miles and has stalled before when id come to a stop but was every now and then , but now its doing it all the time and its getting really frustrating real fast. ive read that its a common problem but nobody seems to know a fix? what is one to do , i used to love my jeep before it started doing this, help please

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Unread 01-03-2011, 09:02 PM   #2
lll2for3lll
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Not a big deal at all. You just need a fuel system service. You need it like every 15,000 miles or so. That's all.
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Unread 01-03-2011, 09:10 PM   #3
hex312
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i hope youre right thank you!
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Unread 01-03-2011, 09:18 PM   #4
hex312
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something like what they do at jiffy lube or something better?
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Unread 01-03-2011, 09:49 PM   #5
lll2for3lll
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Yeah. I get mine done at Firestone.
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Unread 01-04-2011, 11:49 AM   #6
Jeffs3232
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How much should these treatments run? Reason I ask is my local garage wants to replace all 16 plugs in my Hemi and do a fuel service to the tune of about $400. I won't disagree that my WK needs it, but that sounds high to do maintenance every 15-30k.

I am not mechanically inclined so DIY is out of the question for me.
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Unread 01-04-2011, 11:55 AM   #7
CmmdrDan
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ive seen a number of things that people claim to be the problem. egr, throttle position sensor, etc. i just put a bottle of seafoam in my gas tank and i changed my plugs about 2 months ago. my idle has been rough since i bought it and the seafoam may have helped alittle. i dont feel that a fuel system service will fix the problem. i am also not saying that it wont.
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Unread 01-04-2011, 12:45 PM   #8
Jeffs3232
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Quote:
Originally Posted by CmmdrDan View Post
ive seen a number of things that people claim to be the problem. egr, throttle position sensor, etc. i just put a bottle of seafoam in my gas tank and i changed my plugs about 2 months ago. my idle has been rough since i bought it and the seafoam may have helped alittle. i dont feel that a fuel system service will fix the problem. i am also not saying that it wont.
Where can I buy the seafoam treatment and is it safe for the Hemi? Is there anything special you need to do to add it, or just pour it in the tank after a fill up? How often do you put in?

Sorry, I am a newb
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Unread 01-04-2011, 12:49 PM   #9
CmmdrDan
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You can get Seafoam from any auto parts store. Just pour it in the tank. I have only used it once, I am do for an oil change so when i go get oil and everything ill get another bottle to put in.
images.jpg

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Unread 01-04-2011, 05:12 PM   #10
lll2for3lll
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Look at the simple solution first. Get a fuel system service. Mine starts to idle rough every 15,000 to 25,000 miles or so (starts to idle even rougher if I drive even longer to the point where it sounds like it will shut off) and the fuel system service gets it right everytime.
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Unread 01-04-2011, 05:44 PM   #11
Walt
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Quote:
Originally Posted by Jeffs3232 View Post
Where can I buy the seafoam treatment and is it safe for the Hemi? Is there anything special you need to do to add it, or just pour it in the tank after a fill up? How often do you put in?

Sorry, I am a newb
Another point of view: Many swear by Seafoam as a fuel treatment. I'm leary of using it.

My reasoning: I try to keep crud out of the injector / valves / O2 sensor / catalytic converter areas. Seafoam loosens all of that, burns some and sends the rest down the tailpipe. Lots of stories about the Jeep looking like a WWII destroyer putting down a smokescreen after using Seafoam. Always concerned about adversely impacting the four O2 sensors and 2 catalytic converters (they are s-o-o-o expensive).

Injector cleaner will work where the fuel goes, but my HEMI has the entire intake manifold to foul with crud before you come to the injectors at the intake valves. Unless you get into the throttle body area, the gas tank method doesn't address that area.
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Unread 01-04-2011, 05:55 PM   #12
lll2for3lll
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I don't mess with stuff that goes in the gas tank neither.
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Unread 01-04-2011, 06:22 PM   #13
Munch520
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You might need a software reflash too, I had mine done and it was covered under a recall
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Unread 01-04-2011, 06:53 PM   #14
I8AHUMR
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I wouldn't do seafoam in my Hemi. Fuel service every 15-20k seems more like masking a problem rather than actually fixing it. I have 88k on my Hemi and have yet to do any of the above. Still runs great.
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Unread 01-04-2011, 08:00 PM   #15
lll2for3lll
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Check this out.

http://wkjeeps.com/tsb/tsb_wk_1801205.pdf
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