Intake Manifold Runner Control (IMRC) stuck open code: P1518 Troubleshooting advice - Ford F150 Forum - Community of Ford Truck Fans

Go Back   Ford F150 Forum - Community of Ford Truck Fans > Late Model F150s > 1997 - 2003 Ford F150
Log In 

Intake Manifold Runner Control (IMRC) stuck open code: P1518 Troubleshooting advice

Thread Tools Search this Thread
Old 01-18-2012, 02:07 PM   #1
Junior Member
Join Date: Oct 2009
Posts: 6
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Default Intake Manifold Runner Control (IMRC) stuck open code: P1518 Troubleshooting advice

I need to renew my tags, and last time I checked, I had an O2 sensor error that I've just been putting off.

I went to Autozone and had the truck retested today and got an error: P1518 which indicates a IMRC stuck open. I have located the IMRC cable and what I 'think' is the white clip everyone seems to suggest can break off and cause this issue and that seems fine. I removed the plastic housing that covers the cable and did notice it has some give to it, but I couldn't begin to tell you if it's normal or not.

So, the actual IMRC actuator, I'm told, is behind the firewall.

I really don't want this to be a spend hundreds to find the problem scenario and realize it can be a myriad of things, so I thought I'd post my issue here. Does anyone have experience with this and can point me in some troubleshooting directions?

I have noted a lack of horsepower at higher speeds but had attributed this to the truck being old. Maybe it's the actuator not doing it's job at higher RPMs?

My truck is:
2002 F-150 4.2L with approximately 140k miles on it.

Thanks for any advice!
madphill is offline   Reply With Quote
Join F150 Forum

Join Today - It's Totally Free!

Are you a Ford F150 fan? If so we invite you to join our community and see what it has to offer. Our site is specifically designed for you and it's a great place for Ford F150 Fans to meet online.
Once you join you'll be able to post messages, upload pictures of your truck, and have a great time with other Ford F150 fans. Whether your an old timer or just bought your F150 you'll find that is a great community to join. Best of all it's totally free!

Join Today! - Click Here JOIN FOR FREE

Old 01-19-2012, 06:19 PM   #2
5 Year Member
Join Date: Mar 2010
Posts: 50
Thanked 1 Time in 1 Post
Feedback Score: 0 reviews

Here is a two page post someone made showing how to remove the upper intake which you have to do to work on the IMRC. On page 2, step 46 is another link which will take you to another write up showing the IMRC and what needs to be done to fix them.

The BEST write up and pictures I've found showing how to do them!

My 2003 4.2 threw the code last year for the first time. I ran Sea Foam through the engine, disconnected the battery, and the light stayed off for over a year. Just last week it came back on. I disconnected the battery, and again so far the light has stayed off. I am just putting off the inevitable, as I know I will have to repair these sooner or later. But I am not going to pay $800.00 at the dealership to get this done! That's why I bookmarked that write up last year.

Last edited by ls973800; 01-19-2012 at 06:26 PM.
ls973800 is offline   Reply With Quote
Old 01-19-2012, 08:16 PM   #3
Senior Member
papa tiger's Avatar
Join Date: Nov 2011
Posts: 7,263
Thanked 108 Times in 105 Posts
Feedback Score: 0 reviews

Move em back and forth some and see if it frees up. reset code and run it a while. Run some carb/injector/seafoam cleaner thru it. Run the cobs out of it.
papa tiger is offline   Reply With Quote
Old 01-19-2012, 08:16 PM

Similar Threads
Thread Thread Starter Forum Replies Last Post
Code P1518 IMRC toliver5176 1997 - 2003 Ford F150 4 05-10-2011 11:27 AM
Code P2004 Intake Runner Control Stuck Open mwillis 2004 - 2008 Ford F150 2 06-28-2010 12:21 AM
Intake Manifold Runner Control Valve '98 4.2 alfakarl 1997 - 2003 Ford F150 0 05-02-2010 06:47 PM
intake manifold runner control problems jkmode 2004 - 2008 Ford F150 0 12-28-2009 05:42 PM
Code P1537 intake manifold rail runner open 1998 xl 4.2 4x4 auto. is this a death ? frejo Engine / Drivetrain Talk 1 11-29-2009 10:19 PM

1518, control, imrc, manifold, p1518

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not 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 Off
Refbacks are Off

All times are GMT -4. The time now is 04:23 AM.

Copyright 2006 - 20011
This site is in no way affiliated with the Ford Motor Company.