jeep dies on a declone? - JeepForum.com

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post #1 of 20 Old 09-27-2014, 11:59 AM Thread Starter
davegt
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Ive tried searching this and did alot things I read. Cant seem to find the problem. Whenever im on a decline my jeep just wont staying idling, it just bogs down and dies. Runs fine when driving.. just seems as though the idles is directly related to gravity?? I have a 258 with Motorcraft 2150, new vac lines, new fuel fliter, checked timing, set idle screws, 2 even squirts out of the venturi, Vacuum gauge reads between 18 - 20 it does fluctuate between. Any thing I can look at?
Edit..declone..haha decline

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post #2 of 20 Old 09-27-2014, 12:34 PM
Mike Romain
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First thing that comes to mind is the float level.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG AT's, 'glass nose to tail in '00, 'New' frame,wires and plumbing in '09. Carter BBD Carbed 4.0 HO in '10.
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post #3 of 20 Old 09-27-2014, 01:41 PM
swatson454
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Quote:
Originally Posted by Mike Romain View Post
First thing that comes to mind is the float level.
I concur. The fuel is likely pushing forward and exposing the jets.


Shawn

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post #4 of 20 Old 09-28-2014, 09:23 AM Thread Starter
davegt
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I checked the float. Set to specs. Maybe fuel pressure?
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post #5 of 20 Old 09-28-2014, 09:35 AM
Mike Romain
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Quote:
Originally Posted by davegt View Post
I checked the float. Set to specs. Maybe fuel pressure?
How old is the filter?

Mike
86/00 CJ7 Laredo, 33x9.5 BFG AT's, 'glass nose to tail in '00, 'New' frame,wires and plumbing in '09. Carter BBD Carbed 4.0 HO in '10.
89 YJ Renegade. BBD Carbed 4.0 HO. Locked front and rear with 33x9.5 BFG AT's
Some Canadian Bush Jeep Runs and Build Photos: http://mikeromainjeeptrips.shutterfly.com (10 new albums added Sept 16/10)
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post #6 of 20 Old 09-28-2014, 09:39 AM
bulldawgburns
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The "declone" word in the title had me scared, I am still learning this while restoring mine... And thought that there was some new problem that I haven't read about yet!

my hypocrisy knows no bounds
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post #7 of 20 Old 09-28-2014, 03:28 PM Thread Starter
davegt
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Filter is brand new
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post #8 of 20 Old 09-28-2014, 03:55 PM
Matt1981CJ7
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Fuel tank venting properly?

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post #9 of 20 Old 09-28-2014, 04:45 PM
LumpyGrits
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Filter return line at the 12 o'clock position?
LG

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post #10 of 20 Old 09-28-2014, 05:25 PM Thread Starter
davegt
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Filter is in the 12 pos.
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post #11 of 20 Old 09-28-2014, 05:32 PM
LumpyGrits
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Clarify this-'decline' as in back down the hill??
Is so-Lower you fuel level in the carb's bowel 1/8-3/16".
LG

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post #12 of 20 Old 09-29-2014, 05:04 AM Thread Starter
davegt
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It only happens when I go down a hill. I have the float set to specs, but I think im going to play with it a bit. May need to hold more gas in the bowl.
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post #13 of 20 Old 09-29-2014, 05:40 AM
richclan
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i put the float @ 9/16 and put a float spring in mine.. couldnt be happier with it.
http://www.jeepforum.com/forum/f8/19...mbler-2537162/

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post #14 of 20 Old 09-29-2014, 06:08 AM
Mike Romain
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I think I would be checking the connections on the coil out. I have seen that harness shift on angles causing cut outs.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG AT's, 'glass nose to tail in '00, 'New' frame,wires and plumbing in '09. Carter BBD Carbed 4.0 HO in '10.
89 YJ Renegade. BBD Carbed 4.0 HO. Locked front and rear with 33x9.5 BFG AT's
Some Canadian Bush Jeep Runs and Build Photos: http://mikeromainjeeptrips.shutterfly.com (10 new albums added Sept 16/10)
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post #15 of 20 Old 09-29-2014, 09:32 AM
LumpyGrits
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Quote:
Originally Posted by davegt View Post
It only happens when I go down a hill. I have the float set to specs, but I think im going to play with it a bit. May need to hold more gas in the bowl.
Again-Going forward or backing down a hill??
Backing down, this is a common issue. Like I said-Set the float lower.
IF you do have it set correctly. You have PLENTY of fuel in the bowl. Probably, to much fuel.
LG

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