2003 F150 4.6L EFI - rotten pcv elbow.
Codes P0171 (System Too Lean Bank 1) and P0174 (System Too Lean Bank2).

Questions about removing PCV valve. The valve/elbow is hard to get to, do you take off the throttle body? Is the pcv valve just pushed in there. My pcv has a metal ring with two other hoses on it (one on each side). Main question - do you just pop the pcv valve out or do you have to take off the throttle body.

Thanks.

 

Check this thread out that I posted about this type PCV: https://www.f150online.com/forums/sh...d.php?t=301529

 

Thanks for the reply. During my attempt to replace the pcv elbow, just so happens that every hose I removed had coolant in it, including the one at the base of the pcv valve. Therefore, I was determined to replace it without taking anything else off. Using a long screwdriver and a blade, I cut away the remaining half of the rotten elbow that was on the pcv valve. I purchased the replacement hose assembly (part # 2L3Z-6A664-A Hose Vent) for $26.84 from Ford dealer (elbow not sold separately, yea,yea,yea even part # F65Z-6762-BB, which is all over this forum, that one is for the 4.2L, not the 4.6L, at least not mine). I tried for at least an hour trying to get my hand back there, just could not do it. A buddy of mine was watching me, who just so happens to be my 9 yr old son, said he could do it. So I laid a body board across the motor and he laid up there and put it on. Idles steady @750 rpm.

Dealership wanted $90 just for the diagnostic. I just couldn't do it....

Error codes read by Autozone $0
Joining F150Online and talking to people who really know their stuff $0
Fuel filter, tool, and hose assembly $38
You and your son working together on your truck, and actually fixing it Priceless

 

Good job jdr - Specially getting that kid involved. I must have a little more elbow room on my 98. I can barley get my hand back by the firewall ; just enough to slip that elbow off the manifold port (if it's not stuck on there, sometimes you have to crack them loose first.) If I pull the plastic cover/shroud off the TB, I can get to it. The 98 has less emissions/less bullchit in the way..

Yea torkum - jdr emailed me yesterday about that PCV w/that deal rapped around it on his 03. I couldn't figure out what he was talking about right away.

You posted that link above - OH YEA, now I know what he meant, yours was the same way - I have to steal a pic of that

I don't think to many trucks had that set up. That's the true Cold Climate set up and a PITA to deal with