PCV?

scupking

Active Member

Sep 18, 2005

1,186

1

36

Enfield, CT

Jan 7, 2007

#1

• Jan 7, 2007

• #1

I know this is a stupid question but where is the pcv vavle? I see MPC. I'm trying to fix my stalling problem I'm having in damp weather. I allready cleand out my IAC.

 

flames201

New Member

Dec 23, 2004

77

0

0

st. amant, la

Jan 7, 2007

#2

• Jan 7, 2007

• #2

on the pass side valve cover. there is a tube connected from the pcv to the plenum. it is a screw in type, so unscrew 1/2 turn and see what's up. might as well just go with breathers while you are taking it out!

 

S

Saleen4971

New Member

Mar 26, 2003

664

0

0

Setauket, LI

Jan 7, 2007

#3

• Jan 7, 2007

• #3

removing the PCV valve is BAD!! it'll lead to premature oil dilution (blowby gases enter the crankcase and "soak" into the oil)

other than taht, flames201 is correct - pass cover twist out

 

BurningRubber

10 Year Member

Dec 6, 2004

1,865

24

58

Jan 7, 2007

#4

• Jan 7, 2007

• #4

Mine just pulls right out and pops right back in? They must have started the screw in/out after my year, lol.

Like Saleen said, dont leave it off. Remove and replace my freind.

 

RandyStinchcomb

New Member

May 25, 2005

1,159

3

0

Randallstown, Md

Jan 8, 2007

#5

• Jan 8, 2007

• #5

Saleen4971 said:

removing the PCV valve is BAD!! it'll lead to premature oil dilution (blowby gases enter the crankcase and "soak" into the oil)

other than taht, flames201 is correct - pass cover twist out

Click to expand...

bull****

 

Matt's 03 GT

Member

Aug 28, 2006

0

0

17

Orange County

Jan 8, 2007

#6

• Jan 8, 2007

• #6

Randy:

You have your PCV deleted don't you? Can you please explain How and more importantly why to do this. I would certainly be interested.

Thanks as always for sharing!

 

DTNODYA

Member

Dec 15, 2005

831

1

16

Jan 8, 2007

#7

• Jan 8, 2007

• #7

Matt's 03 GT said:

Randy:

You have your PCV deleted don't you? Can you please explain How and more importantly why to do this. I would certainly be interested.

Thanks as always for sharing!

Click to expand...

+1

I've read people say it's bad and others say it doesn't matter ... What's the deal?

 

RandyStinchcomb

New Member

May 25, 2005

1,159

3

0

Randallstown, Md

Jan 8, 2007

#8

• Jan 8, 2007

• #8

Matt's 03 GT said:

Randy:

You have your PCV deleted don't you? Can you please explain How and more importantly why to do this. I would certainly be interested.

Thanks as always for sharing!

Click to expand...

*well, its not environmently friendly advice so "tree-huggers" DO NOT READ

my PCV system was deleted years ago when I installed a Nytrous kit and I got some good advice from 2 Pro 5.0 Nytrous users.

aside from the fact that the PCV system does nothing* but clogg-up the IAC and coat the plenum and intake wth an oily mess/sludge residue.
now on a P/A car all that sludge gets into the incomming air charge and mixes wth the fuel and will lower the octane of the fuel and cause detanation, fouled plugs and other issues.

now most people don't even know that they have a PCV valve or don't know were it's located or when to change it and when they do they buy one, its usally some aftermarket one which has a larger orfice than the OEM ones and can & will draw too much vapor from the crankcase adding to the problem.

if your car is N/A or P/A and you love the enviroment then install a oily/water seperator system, that way you won't sludge-up the intake tract and the air you breath will be better-off

 

DTNODYA

Member

Dec 15, 2005

831

1

16

Jan 8, 2007

#9

• Jan 8, 2007

• #9

^^ Are you talking about breathers or running a oil/air separator? With an oil/air separator you still use the PCV right? So what's the deal with breathers? Can they be used safely in place of the PCV?

 

Give Me TP

Member

Jun 17, 2004

936

0

16

Republic of Texas

Jan 8, 2007

#10

• Jan 8, 2007

• #10

I was using a breather on the PCV, but hooked it back up a few years ago along with a catch can btween the PCV and intake orifice. Amazing to me how much oil is trapped by in the catch can, and I know my intake, pistons, and valves are thanking me

 

LaserRed01GT

Banned

Oct 3, 2006

739

3

0

Clearwater, FL

Jan 8, 2007

#11

• Jan 8, 2007

• #11

Saleen4971 said:

removing the PCV valve is BAD!! it'll lead to premature oil dilution (blowby gases enter the crankcase and "soak" into the oil)

other than taht, flames201 is correct - pass cover twist out

Click to expand...

There is some slight truth in this. The combination of hydrocarbons and moisture as a result of combustion are slightly corrosive to conventional (oil didn't come from dinosaurs) oil, but are relatively harmless to synthetics. But we are talking only a very slight decrease in the longevity of the oil change interval...maybe a few hundred miles with conventional oil at most. Synthetics are relatively immune to this.

However, I would gladly give up the PCV system for a nice clean plenum and intake manifold in favor of a valve cover breather.

 

Give Me TP

Member

Jun 17, 2004

936

0

16

Republic of Texas

Jan 8, 2007

#12

• Jan 8, 2007

• #12

I had a K&N breather element on both the PCV and on the passenger side valve cover, but the one on the valve cover would leak a very slight amount of oil when the engine was run relatively hard. I went with one of the high-dollar SHM breather caps on that side and have since had no further issues with oil leakage.

 

EDGE Motorsport

Member

Sep 24, 2004

561

2

19

Saleen S281, London, UK

Jan 8, 2007

#13

• Jan 8, 2007

• #13

so if you go with a breather, what do you do with the pipe that goes back in to the intake ?

EDGE

 

Give Me TP

Member

Jun 17, 2004

936

0

16

Republic of Texas

Jan 8, 2007

#14

• Jan 8, 2007

• #14

I used a rubber vacuum cap, available at any auto parts store, on the intake orifice. Always have a extra handy though, because they do deteriorate after a few years.

 

RandyStinchcomb

New Member

May 25, 2005

1,159

3

0

Randallstown, Md

Jan 8, 2007

#15

• Jan 8, 2007

• #15

EDGE Motorsport said:

so if you go with a breather, what do you do with the pipe that goes back in to the intake ?

EDGE

Click to expand...

toss it and cap off the port in the plenum wth a rubber plug

 

BurningRubber

10 Year Member

Dec 6, 2004

1,865

24

58

Jan 8, 2007

#16

• Jan 8, 2007

• #16

Sounds like a good idea. I cleaned my plenum not too long ago, and in a few thousand miles it was allll oiled up again.

I dont think a breather will fit under the intake tubing though, so maybe a catch can is the fix for me.

 

S

Saleen4971

New Member

Mar 26, 2003

664

0

0

Setauket, LI

Jan 8, 2007

#17

• Jan 8, 2007

• #17

heres a basic explanation i found

http://autorepair.about.com/cs/generalinfo/l/bldef_621.htm

 

LaserRed01GT

Banned

Oct 3, 2006

739

3

0

Clearwater, FL

Jan 8, 2007

#18

• Jan 8, 2007

• #18

I used a vacuum cap and a hose clamp on my intake tube. You can get the vacuum cap assortments at any parts stores.

 

gtvertsoon

New Member

Apr 17, 2005

154

0

0

Port Tobacco, MD

Jan 9, 2007

#19

• Jan 9, 2007

• #19

Interesting. A little before I installed my blower, I put a small catch can on my PCV tube and it is catching plenty of oil. Not a crazy amount, but a decent amount. I want to get a new PCV valve, but everywhere I go to look for one, there is no part number in the little books with all the filters and such. Doesn't make any sense to me at all, anyone have an explanation for this? Randy, can you give me a part number or somethin so I can pick one up at autozone?

 

the98stang

Active Member

Aug 12, 2005

2,408

0

47

Clovis, CA

Jan 9, 2007

#20

• Jan 9, 2007

• #20

autozone wont sell a motorcraft pcv. You need the Ford one...others are FTL