Originally posted by chongo:
Originally posted by S. Nielsen:

Yep, the one going to the firewall. The hose I pulled off is about 4-5 inches long heater hose. I just did the repair yesterday, so I have yet to see if this solves the CEL problem. I really hope it does. Did you replace your cracked hose?



I read the whole post, but did you replace the PCV plastic hose that goes all the way down the firewall?

Due to the fact this hose is plastic it can develop pin holes in it.
You say you replaced 4-5 inches is that just the piece to the PCV? I bet the whole thing is shot.

Mine had a small hole that went undetected, until I played with it and it shattered.
I replaced the whole run with rubber hose.
Ford wanted $40 for the plastic hose
I paid $10 for rubber hose that will last forever.



I bet you're right. In the process of replacing the 4-5 inches, the plastic hose made some cracking noises which I tried to ignore for moment. I'm still trying to figure out why Ford used a corrugated plastic hose for a vacuum line.

I will probably replace the entire hose now that you mention it. But it looks like a PITA to do. I mean, that hose is halfway down the firewall.