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Unread 08-05-2005, 09:45 AM   #1
Steelman
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Jeep starts, then stops...

Hey Guys,

Check this out...it's happened twice in the past couple of months. I get into my Jeep (1998 TJ 4.0L w/ auto tranny) and it starts right up, but if I let go of the gas pedal, it dies, will NOT idle. I'll start it again, rev it up, but again, when I let go of th pedal, it dies. So...I start it again, and if I get it into gear and drive, even if it's just twenty or thirty feet, then it's fine, idles and drives like a dream, and it's like nothing ever happened. Both times, it has had plenty of gas, 1/4 to 1/2 tank.

Has anyone ever experinced this? Any thought are appreciated!

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'98 Black TJ Sport 4.0L/Auto Trans
-(O|||||||O)-
my rig: http://i9.photobucket.com/albums/a95...n/DSC06310.jpg
_____________________________________________
Quote:
Originally Posted by _Trucker View Post
I would rather shoot you in the face than play a guessing game....
Quote:
Originally Posted by mrblaine
Are you bipolar, passive agressive, or just unable to recognize the dichotomy of your thought processes?
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Unread 08-05-2005, 01:17 PM   #2
Steelman
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Everyone stumped like me???
__________________
-Bob
'98 Black TJ Sport 4.0L/Auto Trans
-(O|||||||O)-
my rig: http://i9.photobucket.com/albums/a95...n/DSC06310.jpg
_____________________________________________
Quote:
Originally Posted by _Trucker View Post
I would rather shoot you in the face than play a guessing game....
Quote:
Originally Posted by mrblaine
Are you bipolar, passive agressive, or just unable to recognize the dichotomy of your thought processes?
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Unread 08-05-2005, 02:48 PM   #3
jeepwrangler268
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blown fuse? that happened to me.

check ur fuse box
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Unread 08-05-2005, 02:56 PM   #4
Steelman
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Quote:
Originally Posted by jeepwrangler268
blown fuse? that happened to me.

check ur fuse box
If it were that, would it be so random, and then start up again like it does?
__________________
-Bob
'98 Black TJ Sport 4.0L/Auto Trans
-(O|||||||O)-
my rig: http://i9.photobucket.com/albums/a95...n/DSC06310.jpg
_____________________________________________
Quote:
Originally Posted by _Trucker View Post
I would rather shoot you in the face than play a guessing game....
Quote:
Originally Posted by mrblaine
Are you bipolar, passive agressive, or just unable to recognize the dichotomy of your thought processes?
Steelman is offline   Reply With Quote
Unread 08-05-2005, 06:00 PM   #5
Steelman
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Any ideas anyone???

__________________
-Bob
'98 Black TJ Sport 4.0L/Auto Trans
-(O|||||||O)-
my rig: http://i9.photobucket.com/albums/a95...n/DSC06310.jpg
_____________________________________________
Quote:
Originally Posted by _Trucker View Post
I would rather shoot you in the face than play a guessing game....
Quote:
Originally Posted by mrblaine
Are you bipolar, passive agressive, or just unable to recognize the dichotomy of your thought processes?
Steelman is offline   Reply With Quote
Unread 08-05-2005, 06:07 PM   #6
subaruboy
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idle air control valve? this controls the air entering the engine when you're not pushing the gas, and if it's bad, it could potentially be cutting off all air to the engine when you're not physically opening the throttle body with your foot


Quote:
Originally Posted by Steelman
Any ideas anyone???

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Unread 08-05-2005, 08:51 PM   #7
msmith97TJ
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I've had similar happen in my 97, although it is not an automatic.
basically it would not keep an idle for the first few minutes, but
once I drove it for a bit it would keep idle.
The problem was I needed to replace my battery- I killed it too many times
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Unread 08-07-2005, 02:08 AM   #8
Steelman
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Quote:
Originally Posted by subaruboy
idle air control valve? this controls the air entering the engine when you're not pushing the gas, and if it's bad, it could potentially be cutting off all air to the engine when you're not physically opening the throttle body with your foot
This sounds like something I need to look into. How dificult is this repair? Wouldn't think it could be the battery as it's fairly new, and I have never 'killed' it!
__________________
-Bob
'98 Black TJ Sport 4.0L/Auto Trans
-(O|||||||O)-
my rig: http://i9.photobucket.com/albums/a95...n/DSC06310.jpg
_____________________________________________
Quote:
Originally Posted by _Trucker View Post
I would rather shoot you in the face than play a guessing game....
Quote:
Originally Posted by mrblaine
Are you bipolar, passive agressive, or just unable to recognize the dichotomy of your thought processes?
Steelman is offline   Reply With Quote
Unread 08-07-2005, 08:18 AM   #9
subaruboy
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Quote:
Originally Posted by Steelman
This sounds like something I need to look into. How dificult is this repair? Wouldn't think it could be the battery as it's fairly new, and I have never 'killed' it!
i'm not sure about the jeep, but on my old monte carlo it wasn't too difficult.

are you getting the check engine light coming on when you're running the jeep?
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Unread 08-08-2005, 12:53 AM   #10
Steelman
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The check engine light did come on for a while, then it went off later that same day (the first time this happened). It did not come on the second time this happened...
__________________
-Bob
'98 Black TJ Sport 4.0L/Auto Trans
-(O|||||||O)-
my rig: http://i9.photobucket.com/albums/a95...n/DSC06310.jpg
_____________________________________________
Quote:
Originally Posted by _Trucker View Post
I would rather shoot you in the face than play a guessing game....
Quote:
Originally Posted by mrblaine
Are you bipolar, passive agressive, or just unable to recognize the dichotomy of your thought processes?
Steelman is offline   Reply With Quote
Unread 08-08-2005, 06:58 AM   #11
subaruboy
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Quote:
Originally Posted by Steelman
The check engine light did come on for a while, then it went off later that same day (the first time this happened). It did not come on the second time this happened...

take it to an advace auto and get the codes read... there should be some stored in the computer
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Unread 08-08-2005, 07:37 AM   #12
jeep_chinto
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do you have a key that has a grey top to it possably the transponder or recever in it has gone bad most likely the recever in the steering collum just a thought
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Unread 08-08-2005, 10:29 AM   #13
Steelman
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My key is just the standard key with the black plastic head on it. Positive that there is no electronics in it.

I guess getting the codes read makes sense...just gotta find the time!!!
__________________
-Bob
'98 Black TJ Sport 4.0L/Auto Trans
-(O|||||||O)-
my rig: http://i9.photobucket.com/albums/a95...n/DSC06310.jpg
_____________________________________________
Quote:
Originally Posted by _Trucker View Post
I would rather shoot you in the face than play a guessing game....
Quote:
Originally Posted by mrblaine
Are you bipolar, passive agressive, or just unable to recognize the dichotomy of your thought processes?
Steelman is offline   Reply With Quote
Unread 08-08-2005, 11:44 AM   #14
Jayoh
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subaruboy is almost definitely right, it sounds like the idle air control valve, I've had this problem myself in a different car. Its probably a good time to change your fuel filter and air filter if you haven't done these in a while.

You might notice its worse if the A/C is on, and if its especially humid and hot outside.

Also, it might let off once it reaches operating temperature.
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