Questions about PCV

[Compaq888]

I want to change out my PCV valve and at the same time install a PCV catch can but everytime I try I run into problems.

Problem #1, Is the hose from the PCV to intake manifold rubber?? Because whenever I touch it, it's rubber but it's stiff like metal. I thought it has metal underneath it and has rubber as a sleeve. I heard people say that they make the rubber hose stuff so it can handle the pressure there. So is it rubber or is it metal and has a rubber sleeve?

Problem #2, My PCV is not the screw on type. It's the pop on type. Which is the best way to take it out??? I have the breather/separator then PCV then I have that stiff rubber line attached to the PCV by a small clamp and the rubber line connects to the Intake manifold, where it's also held on by a small clamp. So what do I do to take the PCV valve out?? Get the clamp off, rip the PCV out the breather/separator????

[katman]

The hose has probably gotten brittle and hard. Just go to your favorite parts store with your old one and they can cut you off a new piece of hose.

[thisisntjared]

i dont know nissans, but the hose isnt exposed to pressure, only vacuum.

mine just pulls out. and i think katman is probably right about dry rot.

[Compaq888]

I'm going to replace the hose anyway with the PCV catch can and new hose. So how do I go about removing the PCV, which part I remove first???

[thisisntjared]

who cares???? its a hose. does it matter?

[95metro]

I think he means how to remove the actual valve since it's a "pop-on" type.

Compaq, I'm not certain how to go about it, but if you don't have a Haynes or Chiltons manual for your vehicle go get one. It will explain the procedure. I've bought one for every vehicle I've worked on - they're cheap and worth a thousand times their weight in gold.

[Compaq888]

I think he means how to remove the actual valve since it's a "pop-on" type.

Compaq, I'm not certain how to go about it, but if you don't have a Haynes or Chiltons manual for your vehicle go get one. It will explain the procedure. I've bought one for every vehicle I've worked on - they're cheap and worth a thousand times their weight in gold.

I have it but it doesn't explain anything. I have the FSM too and that doesn't explain anything either.

[Compaq888]

who cares???? its a hose. does it matter?

I know a guy who replaced his PCV at 70k and his PCV valve didn't work at all. It's bad for the engine not to have a working PCV valve. I'm at 70k too.

[thisisntjared]

I know a guy who replaced his PCV at 70k and his PCV valve didn't work at all. It's bad for the engine not to have a working PCV valve. I'm at 70k too.i dont see how that has to do with anything i just said.

if it pops in the it should just pop out. this isnt rocket science, have you worked on you car before?

and why did you respond with 2 posts? thats weird.

[Compaq888]

i dont see how that has to do with anything i just said.

if it pops in the it should just pop out. this isnt rocket science, have you worked on you car before?

and why did you respond with 2 posts? thats weird.

Ok I will try that method. I tried like 2 times to take it out with no luck.

[95metro]

I have it but it doesn't explain anything. I have the FSM too and that doesn't explain anything either.

That's really weird. Maybe you've just been too gentle with it - I know I have a tendancy do that, but sometimes poundingTheHellOutOfIt is really the only way to go. :D

[Compaq888]

That's really weird. Maybe you've just been too gentle with it - I know I have a tendancy do that, but sometimes poundingTheHellOutOfIt is really the only way to go. :D

LOL

[SVOboy]

Indeed, with many things I have learned to screw being gentle and just pound. So good luck, I think mine was pretty hard to smack off the d15b8, and that engine wasn't even in anything, just sitting in a driveway.

[Compaq888]

Indeed, with many things I have learned to screw being gentle and just pound. So good luck, I think mine was pretty hard to smack off the d15b8, and that engine wasn't even in anything, just sitting in a driveway.

If my engine was out of the car it would of been easy. My PCV valve is right next to the fire wall below the intake manifold. Nissan is weird:rolleyes:

[95metro]

User-unfriendly engine bays suck. I remember changing the spark plugs in my Dodge Spirit. I had to remove the entire air-intake and lie face-down across the engine to access the rear plugs.

[Compaq888]

User-unfriendly engine bays suck. I remember changing the spark plugs in my Dodge Spirit. I had to remove the entire air-intake and lie face-down across the engine to access the rear plugs.

wow, that sucks. i basically replaced everything except the PCV valve. All other things were basically easy.

[Silveredwings]

User-unfriendly engine bays suck.
Last winter I had to pull the v6 out of my Passat to change the water pump. Nice. I guess that makes the underdrive pulley a bit out of the way. ;)

[SVOboy]

Yeah, VWs are a pain to work on, but that's lyfe I guess.

[Compaq888]

ok, when I get the car back I'll try to rip out the PCV

[Silveredwings]

If only honda or toyota made a wagon (not an SUV)... :(

[SVOboy]

There's always the accord wagon or the civic wagovan, :p

The Fit is wagonlike in nature, I feel.

[Silveredwings]

There's always the accord wagon or the civic wagovan, :p

The Fit is wagonlike in nature, I feel.
I'd love an Accord wagon...maybe an '04? :)

You can't get 'em in the U.S.: they don't burn enough gas for our culture.

[Compaq888]

Ok I tried to change it again and I lost about a gallon of coolant from the engine itself. I added coolant to the overflow tank, should I be scared that I will overheat my engine???

[SVOboy]

I would bleed the air out of the system but if it's full with no air then it is fine.

My PCV system doesn't have any coolant in it.

[Compaq888]

Well I'm an idiot yet again. There is instruction in my FSM how to only drain and add coolant if I drained the system. My dealer was like add some water. Anyway since I have AAA I'm just going to have it towed to the dealer and pay $130 to get it done. I needed a coolant flush anyway, so this just speeds it up.

[SVOboy]

Dude, just run it with the radiator cap off and bleed it, it takes a few minutes and doesn't involve doing anything in particular besides adding coolant as air bubbles come out.

[Gary Palmer]

Well I'm an idiot yet again. There is instruction in my FSM how to only drain and add coolant if I drained the system. My dealer was like add some water. Anyway since I have AAA I'm just going to have it towed to the dealer and pay $130 to get it done. I needed a coolant flush anyway, so this just speeds it up.

Comaq888: I am really confused. I thought you were trying to change the PCv valve. Their shouldn't be any coolant being lost. If you lost coolant, you should just replace it with a 50/50 mix of antifreeze and distilled water. I don't know what year your Nissan is, but almost everything I have is from around 90-94 and they use a little bleed valve at the top of the engine, where the upper radiator hose attaches. If it has that, just find a spot that has a little bit of slope, put the car up slope, running, let the bleed srew out until it starts letting air/cooleant out, then leave it until you get all coolant, then close the bleed valve. Then you should just need to put a mix in the overflow for the radiator and you should be good to go.

[Gary Palmer]

Compaq: Are you talking about the radiator overflow tank?

[Compaq888]

The problem got fixed. Svoboy talked me through the whole thing. I bled the system and added fluid.