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Unread 05-14-2010, 07:14 AM   #1
parkerm26
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1993 YJ Wrangler 
 
Join Date: Jun 2009
Location: Norwell, MA
Posts: 527
Idling problem wen coming to a stop

Okay so i just finished my frame welding repairs and got my SYE and CV shaft in (ITS SO SMOOTH!) but now i'm having a problem. Wen i am coming to a stop or a turn and the engine is slowing it down, or i down shift, the jeep will hit extremely low RPM's but after a few seconds, come back up to normal, or stall. if i am accelerating faster or just constant and press the clutch its fine. i can kind of draw a diagram

pressing clutch while: downshift/decelerating---------constant speed----------accelerating faster

RPM's with clutch in: stall-100/100-300------------------300-400-------------------700(normal)

i used to down shift all the time. this has never happened.
DETAILS: JB SS SYE installed. speedometer is not hooked up yet as i need to splice the wires. The T case was removed from the jeep and done on a bench. The jeep sat for about a month total. i took the positive terminal off to weld the frame. the engine was hanging on straps for a while that were under the tranny and holding it up with the frame. new fluids- enigine got new 10-30, tranny got 10-30, trans case got dex 3 equivalent

Please ask any questions if you have an idea of why this is happening or any input

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93YJ 350-465-205, D60 and 14 Bolt, 40's http://www.jeepforum.com/forum/f22/yj-rustoration-1327569/
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Unread 05-14-2010, 07:52 AM   #2
TSEJEEPERS
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1993 YJ Wrangler 
 
Join Date: Dec 2003
Location: Morton IL
Posts: 4,959
Your Jeep needs the speedo hooked up to help control the idle.
Once you hook the speedo up your problem will go away.
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93 YJ SOA 2" springs front, XJ springs rear w/main leaf added, High pinon 9 inch rear detroit locker front Dana 44 ARB 4.56 Gears, 36 inch Irok tires too much to list. www.mijc.org
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Unread 05-14-2010, 08:02 AM   #3
WRMJeep
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1993 YJ Wrangler 
 
Join Date: Apr 2009
Location: NJ
Posts: 40
Also make sure your vaccum lines for the front axle are connected to the T-Case. If not you will have a vaccum leak which could cause an issue.
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Unread 05-14-2010, 01:08 PM   #4
parkerm26
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1993 YJ Wrangler 
 
Join Date: Jun 2009
Location: Norwell, MA
Posts: 527
yeah that 4 way vacuum line that goes into the top of the t case looked like it wasn't getting a good seal but i plugged it on as tight as i could. my jeep specialist mechanic said it might be something to do with the vacuum lines but i thought i hadn't screwed anything up there. thanks TSEJEEPERS i'll get the diagram and splice them in. i already spend enough money i'm not buying the adapter unit unless its less than 10 bucks and i can find it at my local auto parts store which i'm fairly certain i can't haha
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Unread 05-17-2010, 04:45 PM   #5
parkerm26
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1993 YJ Wrangler 
 
Join Date: Jun 2009
Location: Norwell, MA
Posts: 527
Quote:
Originally Posted by TSEJEEPERS View Post
Your Jeep needs the speedo hooked up to help control the idle.
Once you hook the speedo up your problem will go away.
that did it. Thanks man!
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