Stuck throttle speed...but I did search! - JeepForum.com
 
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post #1 of 4 Old 07-14-2010, 01:14 PM Thread Starter
greenrover
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2007 JK Wrangler 
 
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Stuck throttle speed...but I did search!

While driving in 1st or 2nd at 2k or 2500 rpm when I let off the gas it just keeps going the same speed....sometimes even speeding up a bit. I have to hit the brakes till around 1500 or so and it seems to give up. If I push the clutch in it'll stay reeving at the same rpm for a couple of seconds before returning to idle.

I'm thinking IAC? Speed sensor? vacuum leak??

I did some searching and didn't come up with anyone who was having the exact symptoms....any ideas would be appreciated.


07 2dr Rubi*2.5" Lift*5.38's*35's*ARB Diff Covers*ARB Bumpers*Milemarker 9.5SX*IPF 900XS Lights
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post #2 of 4 Old 07-14-2010, 01:17 PM
freeskier93
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Do you have cruise control? I'm not sure if the IAC can let enough air in to maintain 2500 RPM, sounds more like the butterfly is sticking or cruise control is acting wonky.
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post #3 of 4 Old 07-14-2010, 01:44 PM Thread Starter
greenrover
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I do have cruise, it's turned off but I'll disconnect it and test.

07 2dr Rubi*2.5" Lift*5.38's*35's*ARB Diff Covers*ARB Bumpers*Milemarker 9.5SX*IPF 900XS Lights
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post #4 of 4 Old 07-14-2010, 01:52 PM
freeskier93
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Another suggestion is to take the intake hose off the throttle body, so you can see the butterfly. Then have someone else give it gas and see what happens. Also try opening the butterfly by hand and see if you can feel it sticking.
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