YACT: Replacing PCV Valve

[Gamingphreek]

Changing filter tonight everything is good.

In addition to changing my fuel filter (Seperate thread) im changing my PCV Valve. However, i cant seem to find it on my car ('92 Toyota Pickup V6 EFI)

Where i thought it would be it isn't there. Upon searching for it, i heard that it was under the intake plenum. Not quite sure what that is either.

Can someone point me in the right general direction. Ill post pics if needed.

-Kevin

 

[OdiN]

inline...it has hoses on each side?

Sometimes they can be a bitch to get off. In that case, buy new hoses and just cut the old ones to get the fuel filter out. Then you have new hoses too..they are cheap anyway.

 

[Gamingphreek]

Originally posted by: OdiN
inline...it has hoses on each side?

Sometimes they can be a bitch to get off. In that case, buy new hoses and just cut the old ones to get the fuel filter out. Then you have new hoses too..they are cheap anyway.

Well that would be nice, but my hoses disappear before they reach the gas tank. And i dont even know where they are on the fuel pump's side.

But you are right, i using all my strength and it still wont budge. Its going to take some working on.

But do i need to release pressure some way or something? Just what should i expect when i get both sides of the fuel lines disconnected?

-Kevin

 

[Gamingphreek]

bump...anyone

 

[Maximus96]

remove the fuel pump fuse, then start the engine until it dies in a few seconds. crank it a few more times to relieve the pressure. there will still be a crap load of gas that'll spill out tho. have some rags handy. and avoid smoking during the process. to remove the hose, its usually easier to twist and pull, instead of trying to pull straight out which won't get you anywhere.

 

[SuperSix]

Originally posted by: Maximus96
remove the fuel pump fuse, then start the engine until it dies in a few seconds. crank it a few more times to relieve the pressure. there will still be a crap load of gas that'll spill out tho. have some rags handy. and avoid smoking during the process. to remove the hose, its usually easier to twist and pull, instead of trying to pull straight out which won't get you anywhere.

Excellent advice! Follow this man's advice, and be patient!

 

[OdiN]

Originally posted by: Gamingphreek

Originally posted by: OdiN
inline...it has hoses on each side?

Sometimes they can be a bitch to get off. In that case, buy new hoses and just cut the old ones to get the fuel filter out. Then you have new hoses too..they are cheap anyway.

Well that would be nice, but my hoses disappear before they reach the gas tank. And i dont even know where they are on the fuel pump's side.

But you are right, i using all my strength and it still wont budge. Its going to take some working on.

But do i need to release pressure some way or something? Just what should i expect when i get both sides of the fuel lines disconnected?

-Kevin

Read the other posts but yeah if the hose runs all the way back then don't cut it. Sometimes they just have two smaller pieces of hose attached on each end and those are easier to replace than to pull off of the filter sometimes. If that isn't the case then you'll have to get the filter off. Like the guy said twisting/pulling motion works best, but can still be a bitch.

 

[imported_LoKe]

Get a bucket or clean oil-pan handy. Don't want to waste any of that precious gas.

 

[Gamingphreek]

Originally posted by: LoKe
Get a bucket or clean oil-pan handy. Don't want to waste any of that precious gas.

So the gas will drain if i take the filter off and disconnect the lines?

Well now that i know that i can go ahead and finish the process

Has anyone hear of BG Fuel Additive. My Uncle recommended it to me, and i bought it (11oz. $20!!!). Should i add that after a tank of gas or before i fill up. Also before i change the filter, or after i change the filter?

Thanks,

-Kevin

 

[OdiN]

Don't use fuel additives.

 

[OrganizedChaos]

start car. thunk inertia switch, ta-da 0 fuel pressure. if in doubt there will be a schrader valve on the fuel rail somewhere, poke it with something. the lines may drip a little but not much.

 

[Gamingphreek]

Originally posted by: OdiN
Don't use fuel additives.

I dont normally. But this BG is supposed to be excellent stuff to flush the fuel lines and what not.

But will i add before or after filling up? Should i use it before or after installing the Filter?

-Kevin

 

[wasssup]

deja vu

 

[Gamingphreek]

Originally posted by: wasssup
deja vu

Well i would have to fill up on gas. I am down on a 1/4 tank right now.

When i, after releasing the pressure, take off the fuel filter; will EVERYTHING that is in my tank come out? Or just some of the excess that is in the pipe. If it is just the excess than i can get fuel and add the BG before hand and drive it around a little (Will i have to drive around until my tank is empty again before the stuff does what it claims?)

-Kevin

 

[vegetation]

If it's an old car you probably want to change the fuel hoses while you're at it. Twisting and moving around old, ozoned out gas lines = bad. You're likely to create microscopic leaks and they will end up spewing gas when pressurized (and hopefully you'll catch the leak before a fire starts).

 

[Sluggo]

Use caution, some vehicles (Ford trucks come to mind) use a special tool to remove the filter from the lines.

Also use flare nut wrenches while working around fuel lines and stuff. It only takes one rounded off nut to cost you a dealer only part of a metal fuel line for $200 or some crap.

 

[deadlyapp]

PB Blaster or Liquid Wrench on the nuts!

 

[Evadman]

Originally posted by: Maximus96
remove the fuel pump fuse, then start the engine until it dies in a few seconds. crank it a few more times to relieve the pressure. there will still be a crap load of gas that'll spill out tho. have some rags handy. and avoid smoking during the process. to remove the hose, its usually easier to twist and pull, instead of trying to pull straight out which won't get you anywhere.

Listen to this guy.

Also, use 2 clamps designed to pinch the fuel hoses. Craftsman makes some that are only a few bucks. It will save you from making a mess. Do not use locking pliers as they can damage the hose.

Pretty much everything in the line will come out if nto clamped, but it will come out relitively slowly as the hose is basicly 'capped' at both ends, so air pressure is assisting you.

<edit>
almost forgot. When you are cranking the engine after it stops running, only do it once, and for less than 5 seconds (2 or 3 is fine). The fuel cools the injectors and cranking without fuel will overheat and damage them.

 

[Gamingphreek]

In addition to changing my fuel filter (Seperate thread) im changing my PCV Valve. However, i cant seem to find it on my car ('92 Toyota Pickup V6 EFI)

Where i thought it would be it isn't there. Upon searching for it, i heard that it was under the intake plenum. Not quite sure what that is either.

Can someone point me in the right general direction. Ill post pics if needed.

-Kevin

 

[iamaelephant]

The intake plenum should be a large aluminium box-like thingy (could be any number of shapes) attached to the inlet manifold. The intake charge enters through the air filter and into the plenum then enters through the manifold. So it's part of the manifold, it usually sits in the valley between the heads on a V6 but it's easy enough to find. The PVC valve will be in one of the tappet covers, easy enough to remove they usually just pull out.

 

[Gamingphreek]

Originally posted by: Falcon39
The intake plenum should be a large aluminium box-like thingy (could be any number of shapes) attached to the inlet manifold. The intake charge enters through the air filter and into the plenum then enters through the manifold. So it's part of the manifold, it usually sits in the valley between the heads on a V6 but it's easy enough to find. The PVC valve will be in one of the tappet covers, easy enough to remove they usually just pull out.

Yeah it has V6 EFI on it and it is a huge metal thing. Yeah i have to unbolt it, remove it and then find it -_-. Good ol toyota.

As for the fuel filter though, we tried to change it today. It leaked a little, as to be expect, but we couldn't get the fuel line disconnected on either side. We couldn't loosen it and gave up because it was getting dark on the engine side. But on the fuel tank side we loosened it. BUt then it got really tight and wouldn't come out anymore. It just kept loosening. So, since it was getting dark, and we were running out of time, we tightened it back on there.

What happened??

-Kevin