P2004, Intake manifold runner ? ? Anybody know this thing ?

 

Quickie Search =

https://www.f150online.com/forums/sh...ighlight=p2004

https://www.f150online.com/forums/sh...ighlight=p2004

 

Thanks. Does anyone know what it is. Will this part not working damage my truck ?

 

Well - the OP in that second thread sure knows. He fixed his himself.

And if what he says about this problem leaning out the motor holds, then I would get it fixed asap.

He attached an email addy - you can always ask him, too.

BTW - The system is supposed to alter the runner config for better low-end torque.

Here's a link: http://home.flash.net/~ivc1/cobra/imrc.html

Good luck.

bubba

 

Had mine replaced to fix the bogging issue, along with the entire intake manifold (under warranty, whew!) Now, something is causing the timing to be retarded at about 50% throttle. Ford field engineer says it may be the cam phasers fooling the PCM to think that the knock sensors are setting off limp home mode. We will see. The Ford engineer says that there are 5 other trucks in the country with my symptoms. One was fixed with new cam phasers and tensioners, while another required a new engine I hope mine gets fixed soon...