ElwayLite

Is it not trus that if the valve has suction its still working properly. Also, is there a set interval to change this thing at or just when it fails? thanks.

TDiddy

I thought the PCV was a 30,000 mile item?

ElwayLite

Well, ive seen something to that effect, then another said 15k-60k, then another said replace when it doesnt pull air anymore.

TDiddy

Yeah, it tends to vary depending on the vehicle and/or the source (Haynes vs Chilton vs. owners manual etc.)

I remember that rule of thumb too, that if you can still hear it rattle when you shake it, its still good, or if it is still pulling vac then its still good.

I don't believe they are very expensive, usually they are just a few bucks so I've always replaced them at 30K intervals.

Maddog

What happens if you dont replace them ?,
i doubt mine has ever been touched.

ElwayLite

Ive heard everything from detonation can result to a CE light. I dont think anything detrimental really, but I bought one last night for my taco and my car and the total cost was $7.15

havic

For the cost, you might as well replace it every year to avoid problems.

X-AWDriver

I think about every two years or 30k miles should be fine on our trucks.

ElwayLite

Yeah, I keep my own PM program on my pc, plugged the ol PCV in at 30k mile intervals last night. I wonder if there is anything else like that that people over look?

Ilovemountains

I would love to change mine out, and I have the part but on a 3.0 it looks like it may not be worth the hassle! I have NO idea how to get mine out and once I get it out how to put the new one back in, what were they thinking when they stuck it under the damn intake not on the side that is accessable, WHY??

Nam

I think it's just a one way valve. If you can blow it only one way, it's still good.

JM2C,

Nam

Citykid

Hmmm, I wasn't planning on doing that one but I guess I should. I never touched it since I got my truck. Any How-to's on how to replace it?

denverbikeguy

Pull out the old one. Push in the new one.

It's really that simple. Looking in from the front, the PCV valve will be on the left top side of the motor - you'll find a black shaped-rubber hose coming out of the intake manifold about 3/8" in diameter, going down to a white 'L'-shaped thingy plugged into the top of the motor. Just pull the hose off the old one (loosen the clip first) and pull out the old valve. Push the new valve in, put hose back on (and re-tighten clip), and you're done.

Bigkahuna808

sounds to simple, are you sure. With me simple things tend to go bad....

denverbikeguy

Just did it last night. I'm sure.

You want me to take pictures?

ElwayLite

It took me longer to get it out of the package than it did to replace it on my 3.4

denverbikeguy

Tell you what I will be home in a bit here (where my camera is, otherwise I'd just do it now from work), I'll post up a pic or two.

Seriously, this is about on par with playing a CD, on the scale of things that are easy.

Bigkahuna808

where do I buy the PCV valve from, I dont wanna buy the wrong size or somthing like that. All you gotta do is pull the damn thing out, and push the new one in. Sounds easy.....Hope I dont screw it up. I do all sorts of sound installs, and that gets complicated. When ever someone says its easy, I end up making a whole big production out of it.

ElwayLite

Got mine at napa, and its easy as plugging a vacuum hose into an intake, EASY.

denverbikeguy

Posting a writeup on changing a PCV valve shortly to this forum.

It will take me longer to type this up and upload my pics, than it will take you to change out this part.