I had the same problem a few weeks ago. Eventually I found it cause it was making a hissing noise, sprayed it with starting fluid to make sure, yup that was it.
This is the PCV hose elbow right underneath the throtle body. It definately had a big hole in it. I think it was $12 at the dealer.

 

thanks for advice.i`ve only felt this elbow ,but need to take it off to have a good look.last time i tried to remove it i couldnt get it off.darren

 

Hi all, i have the same codes on my '01 4.2 with 105,000 miles on it but the daft thing is i can clear the codes with the scanner i have but the engine light does not come on straight away could take a couple of days, drove 107 miles last weekend before it came on. any thought would be great. Richard

 

hi mate ,search for the codes that your scan has giving you and you should find plenty of ideas like,vac leak,pcv valve,pcv elbow ,maf sensor,egr valve.mate im still trying to sort this headache out.ive put a new pcv valve on and still getting the ses light on.darren

 

I also had P1407 code throw up, replaced one of the sensors that i bought from Clermont Ford after picking their brains and that appears to have sorted that one. thought that the other codes were linked but still learning. The main Ford Dealer in Rugby where i live is last resort. Richard

 

hi ,richard.what sensor did you replace?have you experienced any stalling.my truck will stall,but always starts with no problems.regards darren

 

Hi Darren, the sensor is about a small rectangle 1/4 inch thick buy 1 1/2 square with two small tubes on the back that push into the rubber tubes on the truck and it plugs into a 3 pin connector. the number on the back of it is YF1E-9J460-AD along with >PBT-GF30< .As for it stalling i have only had the truck about three months with no problems. after fitting a new air filter on saturday the service light is (touch wood ) still off, have done a lot of running about this weekend see what happens next week.

 

YF1E-9J460-AD is a DPFE. This is a common failure item and the dealerships are the only ones who have the latest updated part.

 

everyone listen!!! u must take off your upper plenum on your manifold beneath hidden beneath it are about 2-3 more elbows and vacum lines that will be rotted through. i tookj off my plenum to get to my manifold thinking my manifold gaskets were bad and i just replaced all the lines under the plenum and my codes went away for good.

 

hi guys,im in the uk but have family in tn usa .does anyone have a website to where i can get a pcv kit for my 2001 harley f150 5.4.i have the valve ,but need the plastic pipe and elbow that fits to the back of the throttle body.thanks darren

 

Have someone go to the local Ford dealer, buy it, and send it to you.

Can't the UK Ford dealers order them?

I believe this is a dealer-only item.

 

hi mate,uk dealers want just under £60 for this kit ,which i think is a rip off.im waiting for my sister inlaw to get back to me.can find any websites that do this kit for my 2001 harley f150 5.4.darren

 

when disconnecting hoses to replaced a haed gasket i forgot where to connect them , they are all from the 3 barbed vacuum manifold at the back of the uper intake manifold , does anone know where the 3 lines lead? or have a picture of the hoses ? or know where i can find a schmatic

 

The vacum schmatic is in front of the fan cowling when you open the hood of your truck.

 

hi mate,thanks for the reply.im waiting for the parts to arrive here in the uk.ive got a new idle air control valve and pcv tube and elbow .ill fit them and then ill post what happens.darren