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Unread 04-24-2008, 02:47 PM   #1
smitkev2
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1990 YJ Wrangler 
 
Join Date: Aug 2007
Location: Auburn, Alabama
Posts: 200
Idles fine, Shift in gear and it sputters and dies

I've been having this problem off and on. Some weeks its great, others (like today), it runs badly. It will idle fine, but drove it only about 5 miles and it starts sputtering. I pull off and it will idle ok (in Neutral {I've got an Auto}), then when I put it in gear it either dies or runs but sputters. I've read that this could be the coil going bad? I've replaced the fuel filter/ spark plugs & wires several times.

Sometimes if it sputters and I leave it alone for about 20 mins, it will be fine again and run. Whats weird is this problem is not constant, its hit or miss (some weeks fine, some not).

Any ideas would be greatly appreciated.

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Unread 04-24-2008, 02:51 PM   #2
eraten
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1993 YJ Wrangler 
 
Join Date: Apr 2008
Location: Wisconsin
Posts: 28
are you getting any weird sounds or vibrations when its in gear? and does your jeep have a working tachometer?
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Unread 04-24-2008, 02:55 PM   #3
tcourdin
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Join Date: Apr 2005
Location: Fayetteville, AR
Posts: 1,679
I had a truck act kind of like this many years ago, it turned out to be a safety switch on the transmission went bad. It's the switch that will only allow the the vehicle to start only in park or neutral. Dunno if thats whats wrong with yours or not but it's worth checking.

I've also had a fuel pump that would run fine one minute, then quit working the next. It took forever to get it figured out.

I hate problems like that that are intermittent, I just wish it would break!

Coils are pretty cheap, probably worth replacing if you think it could be the culprit.
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Unread 04-24-2008, 04:05 PM   #4
yjcrawlr
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1990 YJ Wrangler 
 
Join Date: Jan 2008
Location: Southern Oklahoma
Posts: 1,783
Sounds like the choke is on.
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Unread 04-24-2008, 05:20 PM   #5
smitkev2
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1990 YJ Wrangler 
 
Join Date: Aug 2007
Location: Auburn, Alabama
Posts: 200
The jeep has a working tach. I don't get any werid vibrations other than the motor tying to both stay running and trying to quit at the same time. HA.

Choke? I have never thought to check that. I just need to make sure the plates are wide open if the choke is off correct? The choke closes the plates if I remember correctly.

Thanks
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Unread 04-24-2008, 08:19 PM   #6
yjcrawlr
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1990 YJ Wrangler 
 
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Location: Southern Oklahoma
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If you can see strait thru you are fine if a butterfly is closed it will probably run but when you need power it will choke out.
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