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Unread 04-28-2012, 10:41 PM   #1
JustinBooth52
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2006 TJ Wrangler 
 
Join Date: Apr 2012
Location: Buffalo, West Virginia
Posts: 320
rough idle

when I start my 1998 wrangler it seams to idle really rough. it cuts in an out and to the point that it will quit. it always does it no matter the eng. temp. or air temp. once I get moving it doesn't do it any more or seam sluggish. it has new fuel pump, pressure regulator, spark plugs and wires.

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2006 Red TJ Rubicon bone stock but building my way up one bolt at a time probably working on it as you read this.
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Unread 04-30-2012, 05:49 AM   #2
cruiser54
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1990 MJ Comanche 
 
Join Date: Oct 2009
Location: Prescott, Arizona
Posts: 9,772
A good throttle body and IAC cleaning is where I'd start. No codes?
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Unread 04-30-2012, 11:40 PM   #3
jnicewan
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1995 ZJ 
 
Join Date: Dec 2010
Location: Norman, OK
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I would also check for a vacuum leak, inspect all rubber vacuum hoses. You can also spray some carb cleaner around the hoses and intake gaskets etc to aid with finding a vac leak.
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Unread 05-30-2012, 08:11 PM   #4
JustinBooth52
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2006 TJ Wrangler 
 
Join Date: Apr 2012
Location: Buffalo, West Virginia
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when ever it rains and i try to start it it almost won't or i spray the engine bay with the water hoose it spudders and quits. there are not codes. I have replaced the distributer cap and spark plug wires. it just sudders while idling and quits
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2006 Red TJ Rubicon bone stock but building my way up one bolt at a time probably working on it as you read this.
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Unread 05-31-2012, 07:51 PM   #5
Tracy1974
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2004 TJ Wrangler 
 
Join Date: Feb 2012
Location: Corpus Christi, Tx
Posts: 54
Check your distributor at night in a real dark area. I know u said u replaced cap and not sure on that one if the base is metal or plastic that the cap goes on but I had a truck that had a plastic base and I could see an arc at night where the current was jumping from rotor to the crack because the crack hold moisture thus causing a misfire especially in moist conditions. And I have also seen a new cap do this. You can't see the hairline crack from the eye but u will see the arc at night. Very well might not b the case for u but it won't cost anything but a minute of your time.
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