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Unread 01-17-2013, 10:30 PM   #1
beachedjeepyj
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1988 YJ Wrangler 
 
Join Date: Jul 2009
Location: corpus christi texas
Posts: 581
jeep stalls when coming to a stop after engine is warm

So here is my problem, I have a 88 wrangler with a 4.2 and motercraft 2150 carb, when after the engine is warmed up the jeep stalls when coming to a stop or slowing down. Before the engine is warm it will drive perfectly fine with no problems. The stalling most of the time happens at the same spot in my commute. One is a sharp right turn and the other is a stop sign. It seems as if it is perfectly timed every time it stalls, about 10 minutes into driving.

After it stalls it will either start up fine or start and stall immediately and requires me to give it a little gas as it cranks. After it starts again the engine will lope and surge while coasting and it will generally lope before stalling in the first place. I know when it will happen whenever I see the tach bounce.

I just don't know where to start looking for the problem.

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[QUOTE=Jeep89JV;9284099]Do I let others drive my rig? No -- Why, because if this ship sinks i'll be the captain and I go down with this ship.[/QUOTE]



[url]http://www.jeepforum.com/forum/f12/motorcraft-carb-swap-961766/[/url]
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Unread 01-18-2013, 04:49 AM   #2
Mark05059
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1989 YJ Wrangler 
 
Join Date: Mar 2009
Location: quechee Vermont
Posts: 4,202
are you nuttered?
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1998 ZJ 5.2 Auto

1989 Wrangler Black Bone Stock 2.5l 5spd
/l , [____],
|---L--[]lllllll[]-
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Unread 01-18-2013, 07:16 AM   #3
Jeepsr4me
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Posts: 3,418
Check the fuel float level. Also check to see when the choke is opening up. You may have a plugged curcuit and not able to get the right amount of fuel. The MC carb is a good one and easy to get running right.
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Unread 01-18-2013, 11:12 AM   #4
beachedjeepyj
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1988 YJ Wrangler 
 
Join Date: Jul 2009
Location: corpus christi texas
Posts: 581
Checked the float level and it was a little too low so I adjusted that. I just need to test drive to see if that was the problem.

The jeep is nuttered and the choke is fully open before the jeep is warm approx 5 minutes after driving.
__________________
[QUOTE=Jeep89JV;9284099]Do I let others drive my rig? No -- Why, because if this ship sinks i'll be the captain and I go down with this ship.[/QUOTE]



[url]http://www.jeepforum.com/forum/f12/motorcraft-carb-swap-961766/[/url]
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Unread 01-19-2013, 11:05 AM   #5
beachedjeepyj
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1988 YJ Wrangler 
 
Join Date: Jul 2009
Location: corpus christi texas
Posts: 581
Well the float level was not the problem, the jeep still stalls the same. Any other ideas?
__________________
[QUOTE=Jeep89JV;9284099]Do I let others drive my rig? No -- Why, because if this ship sinks i'll be the captain and I go down with this ship.[/QUOTE]



[url]http://www.jeepforum.com/forum/f12/motorcraft-carb-swap-961766/[/url]
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Unread 01-19-2013, 04:25 PM   #6
Mark05059
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1989 YJ Wrangler 
 
Join Date: Mar 2009
Location: quechee Vermont
Posts: 4,202
check for vac leaks... specifically near the brake booster.
__________________
1998 ZJ 5.2 Auto

1989 Wrangler Black Bone Stock 2.5l 5spd
/l , [____],
|---L--[]lllllll[]-
()_) ()_)==O=)_)
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