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Ford Truck Club Forum > GARAGE TALK > Garage Talk: Shop Class 101



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  #1  
Old December 6th, 2011, 08:15 PM
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Default PCV Reroute for 5.0\5.8 EFI (Pre-1993)

Hello everyone, I've read a lot about this reroute, but I haven't actually seen a write-up on it.
If there is one, then oh well, now there's 2. There's TSB from Ford about the original way
the PCV valve is routed. Basically the PCV dumps the oil\moisture\etc into the last 2 cylinders,
number 4 and number 8, but mainly number 8 and has caused numerous engine failures.
The TSB has us pull the upper plenum, drill a hole on the passenger side of the plenum, tap it,
and run the PCV valve to the new hole. That was entirely too much work for me, so I
decided to reroute it with the brake booster.
For those that want a link to the TSB, here ya go:
http://www.oldfuelinjection.com/files/Reroute_PVC.pdf

Tools:
Pliers (maybe? if you can't get the hose off with your hands)
Beer

Parts:
About 2.5-3 feet of hose for the PCV (I used 11/32")

To get started, pull your PCV valve, including the hose thats run to the intake Plenum, you can
see the PCV here (you do NOT need to pull your engine to do this).

Save your PCV (or replace it if you want), and throw the stock PCV hose at the dog.
First, let's watch some Discovery Channel, it's mating season for the North American PCV valve:

It appears to have found a mate:

After a very inappropriate mating ritual, you have:

Almost done! head back over to your truck and unplug your brake booster hose from the vacuum tree.
Here's a pic of how it is run normally:
Here it is unplugged:
Run the brake booster hose to the back of the intake plenum (where the PCV hose used
to be plugged into) and plug it in.

Take your new PCV valve\hose combination and plug the end without the PCV valve attached
into the Vacuum tree.

Run the hose around the back of the intake plenum and put the PCV valve back into
your valve cover.

Run into the valve cover, don't mind the RTV, my gromet didn't fit quite right.

Drink beer. Done!


89 F-150 5.0l AOD 2x4, 3.55 LS(+4), Converted to HO Roller, 3g Alt, GT40Ps, Y-pipe, Rerouted PCV, Dual Taurus E-fans, Explorer Injectors, Remote ICM, DIY Cold air, Rubber Vacuum System, Tranny cooler, Remote Tranny filter, Saginaw P\S swap, F350 Brakes, more.



Last edited by Booba5185; December 6th, 2011 at 10:10 PM.
  #2  
Old December 6th, 2011, 08:41 PM
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Good stuff. And it's even in the correct section. Best noob yet!
I will have to keep all of these in mind for when I can finally get my hands on a 351
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Old December 6th, 2011, 09:01 PM
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good info
thanks for shareing


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  #4  
Old January 31st, 2012, 07:23 PM
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I've since added an oil\water seperator, to keep the inside of the engine cleaner. Install was pretty easy and straight forward, just make sure the flow is going AWAY from the PCV valve. Pic:


89 F-150 5.0l AOD 2x4, 3.55 LS(+4), Converted to HO Roller, 3g Alt, GT40Ps, Y-pipe, Rerouted PCV, Dual Taurus E-fans, Explorer Injectors, Remote ICM, DIY Cold air, Rubber Vacuum System, Tranny cooler, Remote Tranny filter, Saginaw P\S swap, F350 Brakes, more.


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  #5  
Old March 26th, 2012, 08:30 PM
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What valve covers did you use?
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Old March 26th, 2012, 09:56 PM
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Some Mr. Gasket chrome valve covers. My stock one got pretty bent up when I pulled them off from leaking. Now that I have the reusable gaskets, no prying is needed at all.


89 F-150 5.0l AOD 2x4, 3.55 LS(+4), Converted to HO Roller, 3g Alt, GT40Ps, Y-pipe, Rerouted PCV, Dual Taurus E-fans, Explorer Injectors, Remote ICM, DIY Cold air, Rubber Vacuum System, Tranny cooler, Remote Tranny filter, Saginaw P\S swap, F350 Brakes, more.


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Old March 26th, 2012, 09:57 PM
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Standard 302 chromes covers. Thanks again.
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Old March 26th, 2012, 10:04 PM
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Heck I didn't know it was this easy, this is on my to-do list. What all did you do to get the driverside engine bay(between the air filter box and upper plenum) so clean? Mine is a mess of wires, I wanna clean it up and make it look like yours.
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Old March 26th, 2012, 10:07 PM
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Change your filter box to one that sits on the wheel well easy to do. I plan to do it again.
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Old March 26th, 2012, 10:25 PM
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Changing over to the rubber hoses on the vacuum system cleaned things up a lot, because I can route(hide) them how I saw fit. Other than that, I just tucked as much wire back into tthe loom as possible so there was no extra wires hanging out.

Ridge, what do you mean changing the filter box to one on the wheel well? Mine is stock, other than being wraped in header wrap, insualting bubble wrap, and insulating tape. I do have the 300\460 air intake that goes from the air box to the front core support.


89 F-150 5.0l AOD 2x4, 3.55 LS(+4), Converted to HO Roller, 3g Alt, GT40Ps, Y-pipe, Rerouted PCV, Dual Taurus E-fans, Explorer Injectors, Remote ICM, DIY Cold air, Rubber Vacuum System, Tranny cooler, Remote Tranny filter, Saginaw P\S swap, F350 Brakes, more.


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