Concorde won't Idle, stalls - DodgeIntrepid.Net Forums - Dodge Intrepid, Concorde, 300m and Eagle Vision chat
 
LinkBack Thread Tools Rate Thread Display Modes
post #1 of 10 (permalink) Old 07-12-2012, 11:33 AM Thread Starter
Intrepid Newbie
 
Join Date: Jul 2012
Location: Colorado
Posts: 9
Feedback: 0 / 0%
 
Concorde won't Idle, stalls

'04 Concorde, haven't driven for a couple of months, started it up by pumping the pedal, starts but won't idle, stalls. I can press the gas pedal and keep the RPM's up, will run fine. There is a vacuum hose on the driver side of the intake that comes from a cone shaped piece that also has a cable to the throttle body, that when I remove the hose, the car idles fine, but as soon as I put that back on, it dies. What can I do? I tried to pull the Idle Control Module and clean it, but the plunger seems to be free and fine.
Bradahl is offline  
Sponsored Links
Advertisement
 
post #2 of 10 (permalink) Old 07-12-2012, 12:21 PM
Intrepid Pro
 
Join Date: Feb 2002
Location: Virginia, U.S.
Posts: 14,133
Feedback: 4 / 83%
                     
The cone-shaped thing is the cruise control servo.

When you say you remove the vacuum hose from that and it idles fine, are you closing off the free end of that hose?
peva is online now  
post #3 of 10 (permalink) Old 07-12-2012, 12:26 PM Thread Starter
Intrepid Newbie
 
Join Date: Jul 2012
Location: Colorado
Posts: 9
Feedback: 0 / 0%
 
There is a vacuum line that comes off of that servo, goes towards the engine, there is a "T" in the line, one goes below the fuse box, the other straight into the side of the plastic intake cover. when I remove that vacuum line from the side of the plastic cover, and leave it loose, I can hear the vacuum sound out of the side of the plastic cover, but it runs fine with that open. As soon as I place the vacuum line back on the fitting, or place my finger over the fitting, which sucks the skin on my finger, the car dies.
Bradahl is offline  
post #4 of 10 (permalink) Old 07-12-2012, 12:45 PM
Intrepid Pro
 
Join Date: Feb 2002
Location: Virginia, U.S.
Posts: 14,133
Feedback: 4 / 83%
                     
Sounds like the IAC is not working, and it's getting the additional air it needs from that "leak" that you create when you remove the vacuum line. (Fuel adjusts automatically according to the air it does get based on O2 sensor outputs.)
peva is online now  
post #5 of 10 (permalink) Old 07-12-2012, 12:48 PM Thread Starter
Intrepid Newbie
 
Join Date: Jul 2012
Location: Colorado
Posts: 9
Feedback: 0 / 0%
 
So I've pulled the IAC, tried to clean it with carb cleaner, the plunger seems to be free and working, I've cleaned inside the throttle body, what I can reach with carb cleaner and rag or toothbrush, can I remove the throttle body for better cleaning, or replace the IAC? If something is dirty inside the throttle body, hate to replace the IAC to have it do the same thing.
Bradahl is offline  
post #6 of 10 (permalink) Old 07-12-2012, 05:58 PM
Intrepid Pro
 
Join Date: Feb 2002
Location: Virginia, U.S.
Posts: 14,133
Feedback: 4 / 83%
                     
Quote:
Originally Posted by Bradahl View Post
So I've pulled the IAC, tried to clean it with carb cleaner, the plunger seems to be free and working,...
Perhaps it is an electrical problem?

Quote:
...can I remove the throttle body for better cleaning, or replace the IAC?...
Shouldn't be necessary to remove throttle body. Could try replacing the IAC - maybe try a junk yard part.
peva is online now  
post #7 of 10 (permalink) Old 07-20-2012, 12:31 AM Thread Starter
Intrepid Newbie
 
Join Date: Jul 2012
Location: Colorado
Posts: 9
Feedback: 0 / 0%
 
Angry Changed the IAC but still have a code

So I replaced the IAC, pulled the battery cable to reset the codes, started up the car and went from three codes, 0443, 0508, & 0509, and now I just have 0509 remaining. Any ideas how to get that last IAC code to clear, and the car still won't idle, just stalls out. I did find that the PCV elbow was torn, so I replaced that as well, along with the PCV itself.
Bradahl is offline  
post #8 of 10 (permalink) Old 07-20-2012, 12:42 AM
Woober Goobers!

 
Ronbo's Avatar
 
Join Date: Mar 2005
Location: Tiny Pebble, AR
Posts: 39,653
Feedback: 44 / 100%
                     
Did you replace the IAC with another one or just re-install the original one?
Ronbo is offline  
post #9 of 10 (permalink) Old 07-20-2012, 01:09 AM Thread Starter
Intrepid Newbie
 
Join Date: Jul 2012
Location: Colorado
Posts: 9
Feedback: 0 / 0%
 
Iac

Brand new from NAPA, dang they like their parts, $65.
Bradahl is offline  
post #10 of 10 (permalink) Old 10-25-2012, 09:59 AM
Intrepid Modder
 
ncfrc's Avatar
 
Join Date: Oct 2010
Location: VT ,, USA
Posts: 740
Feedback: 1 / 100%
 
Thumbs down

Clean the throttle body .
Use a large swab on a metal rod to get in there and scrub it.
There has to be a fixed air gap as even IAC can't quickly compensate
for a closed throttle plate.
ncfrc is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the DodgeIntrepid.Net Forums - Dodge Intrepid, Concorde, 300m and Eagle Vision chat forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

Member names may only be composed of alpha-numeric characters. (A-Z and 0-9)

!!ATTENTION ADVERTISERS!! If you intend on advertising anything on this forum, whatsoever, you are required to first contact us here . Additionaly, we do NOT allow BUSINESS NAMES unless you are an Authorized Vendor. If you own a business, and want to do sales on this site via posting or private message, you will need to follow the rules. Shops, Stores, Distributors, Group Buys without being authorized will see your account terminated.

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 email 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.



Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes Rate This Thread
Linear Mode Linear Mode
Rate This Thread:



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 On
Pingbacks are On
Refbacks are On

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