My 2003 Wrangler Idles From 1000 RPM to 2000 RPM whats wrong? - Page 2 - JeepForum.com
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Unread 05-31-2012, 10:42 AM   #16
erics1019
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2003 TJ Wrangler 
 
Join Date: Aug 2009
Location: baton rouge, la
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how can i tell if they are leaking! and also i know it may sound stupid but the manifold is where the header attaches correct can you send a pic of the manifold and cables i would greatly appreciate it and also do i need to leave the jeep running?

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Unread 05-31-2012, 10:45 AM   #17
rondenzer
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Get a can of spray carb cleaner and with the engine running spray all of the vacuum lines and hoses, if the idle drops down then you have found your leak. If no leak there then spray around the intake manifold, again if the idle drops you have found your leak. Mine was a rotten hose on the fuel vapor purge valve, quick fix once located.
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Unread 05-31-2012, 10:53 AM   #18
erics1019
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you say spray it on the hoses and find your leak do i have to disconnect the hoses and spray them or spray them attached and also how will that drop the idle if i spray the hose i am confused again i am sorry i never done this exact thing before i am sure its easy i just want to be sure before i start it and is carb cleaner the same as TB cleaner thanks. can someone send pics of the manifold and hoses and how many hoses are hooked up normal to the manifold thanks!
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Unread 05-31-2012, 10:54 AM   #19
LittleBluE
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Quote:
Originally Posted by rondenzer
Get a can of spray carb cleaner and with the engine running spray all of the vacuum lines and hoses, if the idle drops down then you have found your leak. If no leak there then spray around the intake manifold, again if the idle drops you have found your leak. Mine was a rotten hose on the fuel vapor purge valve, quick fix once located.
Carb cleaner should just be called problem diagnoser. I never use it on carbs looooool
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Unread 06-01-2012, 07:31 PM   #20
Jerry Bransford
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Quote:
Originally Posted by erics1019 View Post
you say spray it on the hoses and find your leak do i have to disconnect the hoses and spray them or spray them attached and also how will that drop the idle if i spray the hose i am confused again i am sorry i never done this exact thing before i am sure its easy i just want to be sure before i start it and is carb cleaner the same as TB cleaner thanks. can someone send pics of the manifold and hoses and how many hoses are hooked up normal to the manifold thanks!
You're looking for leaks where the various vacuum hoses are connected. Leave the hoses connected and after starting the engine, start spraying the hoses where they connect and if the cleaner gets sucked in through a vacuum leak, the engine RPMs will change.
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Unread 06-04-2012, 10:35 AM   #21
erics1019
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ok so this weekend i took the TB off and cleaned it really well and i took the AIC plunger out and cleaned it as well but my engine still revs up around 1500 rpms what else could be the issue any one have any ideas thanks!
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Unread 06-04-2012, 10:44 AM   #22
Necko2529
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Have you looked for/located a vacuum leak?
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Unread 06-04-2012, 10:46 AM   #23
erics1019
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no i have not how can i do that again please describe in details thanks!
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