Rough idle and low RPM in drive...I need help - Page 3 - JeepForum.com

Reply
 
LinkBack Thread Tools
post #31 of 65 Old 06-24-2012, 11:48 PM Thread Starter
Rico25
Registered User
2004 TJ Wrangler 
 
Join Date: Aug 2011
Location: Mississauga
Posts: 48
what and where is a MAP sensor? and is it expensive/ hard to do?

Rico25 is offline  
Sponsored Links
Advertisement
 
post #32 of 65 Old 06-25-2012, 12:05 AM
20024BangerTJ
Registered User
2002 TJ Wrangler 
 
Join Date: Jun 2012
Location: Chesapeake
Posts: 13
It's around 60 bucks takes 2 min to change. Google it
20024BangerTJ is offline  
post #33 of 65 Old 06-26-2012, 08:09 AM Thread Starter
Rico25
Registered User
2004 TJ Wrangler 
 
Join Date: Aug 2011
Location: Mississauga
Posts: 48
Hey guys,
Just a little update, I found what I think is a cracked gasket on the IAC housing unit that attaches to the TB...Someone told me if I spray brake cleaner fluid on the area where I think the leak is and it changes the idle of the engine, that's probably my problem? Any thoughts?
Rico25 is offline  
post #34 of 65 Old 06-26-2012, 08:35 AM
jeepinhokie
Registered User
2004 TJ Wrangler 
 
Join Date: Apr 2010
Location: MD
Posts: 2,809
Quote:
Originally Posted by Rico25 View Post
Hey guys,
Just a little update, I found what I think is a cracked gasket on the IAC housing unit that attaches to the TB...Someone told me if I spray brake cleaner fluid on the area where I think the leak is and it changes the idle of the engine, that's probably my problem? Any thoughts?
that leak is not helping any, thats for sure. sealing up that leak might be all you need to do. cant hurt.
jeepinhokie is offline  
post #35 of 65 Old 06-29-2012, 08:20 AM Thread Starter
Rico25
Registered User
2004 TJ Wrangler 
 
Join Date: Aug 2011
Location: Mississauga
Posts: 48
Ok guys, just a quick question. I am replacing the gasket on the housing for the IAC that attaches to the throttle body, I bought a gasket pack for it, comes with 4 sheets, but they are all for different things tho. One is for " air cleaner, one is for "oil and coolant", one for "water pump" and the last is for "fuel pump". I know this sounds stupid but I'm not sure which one would be best, I am thinking the air cleaner one. I also got the gasket in tube stuff ( high heat rated). Which one is better?
Rico25 is offline  
post #36 of 65 Old 06-29-2012, 10:07 AM
jeepinhokie
Registered User
2004 TJ Wrangler 
 
Join Date: Apr 2010
Location: MD
Posts: 2,809
doesnt sound like your gasket pack includes the IAC gasket. the gasket in a tube (RTV) can be used. but there are some RTVs that are approved for use with sensors, you might look into. not sure if high temp red is approved for sensors.
jeepinhokie is offline  
post #37 of 65 Old 06-29-2012, 10:14 AM Thread Starter
Rico25
Registered User
2004 TJ Wrangler 
 
Join Date: Aug 2011
Location: Mississauga
Posts: 48
It's not for the sensor itself, it's for the sensor housing that bolts onto the T body, the IAC plugs into the backside of the housing and then the housing bolts onto the left side of the T body ( looking from the grill at the engine)
Rico25 is offline  
post #38 of 65 Old 06-29-2012, 10:17 AM
jeepinhokie
Registered User
2004 TJ Wrangler 
 
Join Date: Apr 2010
Location: MD
Posts: 2,809
i would still be cautious of using an RTV that isnt sensor safe. the IAC and TPS are both very close.
jeepinhokie is offline  
post #39 of 65 Old 06-29-2012, 10:19 AM Thread Starter
Rico25
Registered User
2004 TJ Wrangler 
 
Join Date: Aug 2011
Location: Mississauga
Posts: 48
image-2603595898.jpg

The idle air control module at the top of the pic, that housing gasket right there is what I need to fix I think...hopefully it will stop the bad idle
Rico25 is offline  
post #40 of 65 Old 06-29-2012, 10:21 AM Thread Starter
Rico25
Registered User
2004 TJ Wrangler 
 
Join Date: Aug 2011
Location: Mississauga
Posts: 48
I will be...I am gonna try the sheet of gasket paper stuff first and see how that goes...thanks for the heads up tho, wouldn't have known that myself. Any thoughts on what type of gasket material I should use? I was leaning towards the air cleaner one
Rico25 is offline  
post #41 of 65 Old 06-29-2012, 10:23 AM
jeepinhokie
Registered User
2004 TJ Wrangler 
 
Join Date: Apr 2010
Location: MD
Posts: 2,809
i would assume the air cleaner one would suffice.
jeepinhokie is offline  
post #42 of 65 Old 06-29-2012, 10:29 AM Thread Starter
Rico25
Registered User
2004 TJ Wrangler 
 
Join Date: Aug 2011
Location: Mississauga
Posts: 48
I would assume the gaskets are heat rated right? I feel like an idiot asking some of these questions lol
Rico25 is offline  
post #43 of 65 Old 06-29-2012, 10:33 AM
jeepinhokie
Registered User
2004 TJ Wrangler 
 
Join Date: Apr 2010
Location: MD
Posts: 2,809
yes, they should do just fine.

i wouldnt use generic ones to seal the exhaust, but for the intake they should be fine.
jeepinhokie is offline  
post #44 of 65 Old 07-01-2012, 06:51 PM
Mywrangler94
Registered User
1994 YJ Wrangler 
 
Join Date: Nov 2010
Location: Staten Island
Posts: 515
ah....guys..the iac is an "O" ring. Thats what seals the iac to the throttle body. Not a paper gasket. The "O" ring is the "gasket". Secondly, you say the dealership said you have a "lean" code? Lean codes are caused by a few things, mostly a vacuum leak. I would not doubt that you have an intake leak. That would cause a crappy idle. In any event, take a can of NON FLAMMABLE BRAKE cleaner, and spray down your intake manifold where it meets the head.. ANY change in idle means a leak... period. Be it a bad manifold gasket or cracked manifold......
Mywrangler94 is offline  
post #45 of 65 Old 07-01-2012, 07:26 PM Thread Starter
Rico25
Registered User
2004 TJ Wrangler 
 
Join Date: Aug 2011
Location: Mississauga
Posts: 48
I know the iac is a ring gasket... I am talking about the housing that connects directly into the T body, not the iac connection part. and also the car is not throwing any codes what so ever...just that it is running lean as per the comp at chrysler. Thanks for the tip tho, keep them coming

Last edited by Rico25; 07-01-2012 at 11:18 PM.
Rico25 is offline  
Reply

Tags
low rpm , please help , rough idle

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the JeepForum.com forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid e-mail address for yourself.



Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Similar Threads
Thread Thread Starter Jeep Forums Replies Last Post
2004 TJ 4.0 High Idle after Drive, but then normal idle greenjeepsrule TJ Wrangler Technical Forum 6 11-07-2012 11:52 AM
04 lj rough/low idle in drive APEDZ04LJ TJ Wrangler Technical Forum 9 07-24-2012 06:55 PM
rough idle idle issue rescue913 YJ Wrangler Technical Forum 1 10-21-2010 06:57 PM
Rough idle after 1/2 mile drive... NEED HELP!!! poobub TJ Wrangler Technical Forum 8 07-27-2009 04:24 PM
Idle Air Controller - Trying to Clean for Rough Idle - Need Help JBWood05TJ TJ Wrangler Technical Forum 21 08-24-2008 06:40 AM

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome