thomasd cook

iTrader: (7)

My old one looked pretty oily and dirty. It didn't move too freely when I shook it back and forth. The new one went back & forth very easily. I feel a difference performance wise. It feels like it revs faster and shifts faster than before. I'd say change it at about 45,000 miles. Installation wasn't too bad. I can help with install if needed.
Also this was discussed before. If you have an Intake be sure to check your screws which hold it together. I went to swap out PCV Valve and noticed Intake was hanging by one screw.

sloppymax

iTrader: (8)

i changed mine out yesterday right under 40k. my old was completely stuck with no movement at all. you can clean them but replacements are so cheap that i went that route. i replaced mine with a purolator one since the dealer did not have one in stock for whatever reason. i did not feel any difference after the change.

SkoorbMax

I swapped at just under 60k miles. The thing didn't jiggle as nice as the $11 OEM replacement, and since I don't know the history of this car before 37k I thought I'd swap. I noticed no difference, but didn't much expect to.

I also checked out my 73 sentra's PCV valve. Thing was a MESS. Oily and filthy, but I actually turned the engine on with the hose hooked up to the valve and the valve not in its housing, and even the filthy pcv valve was still sucking pretty strongly, so I'm sure my old PCV valve in the maxima was good. Still, it's a quick and inexpensive swap and now I know when it was last done.

On a 2000 maxima the red arrow in the picture points to the PCVvalve.Picture (if anybody is wondering).

MrGone

iTrader: (30)

damn, thats nice and easy
I guess I'll do it on my dads max.
I replaced mine while I had the intake apart for my porting project

I still need to replace my fuel filter, good think it will only take 5mins, neiner neiner neiner

Luquire

it does look pretty easy. maybe i will do it this weekend

MacAlert

iTrader: (1)

Stupid question, what does a PCV Valve do?

SkoorbMax

It stands for positive crankcase ventilation, and it sucks continually, when the engine is on, gasses from your crankcase. Without it, gasses can build up to high pressures and cause issues such as oil leaking, I believe.

To those who are going to do this themselves - for me personally I had to grab on to the hose and just yank very hard. It was lodged in there pretty tightly. Then, once the PCV valve pops out you can easily take the hose off the end of it. I've heard it's a good idea to lightly coat the PCV valve exterior with clean oil, so that it slips back in easily, and comes out easily next time.

the paragon

iTrader: (11)

where did you get your PCV valve from?

HKMax

Where should one look to find the PCV valve?

VMosser323

iTrader: (1)

What kind of oil should be used to lubricate the PCV valve before installation???

sloppymax

iTrader: (8)

any motor oil should be fine, dino or synthetic should not matter. i just had an oil change so i just use some off the dipstick. i would either go with the purolator pcv or go with the oem nissan. people have said the fram does not have a good fit and does not resemble the dimensions as closely as the purolator does. advance and pep boys both carry the purolator in my area. it was a special order item and was like $3.50. if you looking for the location of the pcv on the car, follow the link posted above and look for the red arrow.

spirilis

iTrader: (2)

go with OEM nissan... at least you can't go wrong. Autozone's PCV valve did not fit properly.

thomasd cook

iTrader: (7)

I got mine from Autozone. Fit pretty well. It can't make that much of a difference between that and the one from stealership?

spirilis

iTrader: (2)

The autozone one BARELY fit, and even then it was WAY too tight. I had a hell of a time getting it back out just to put the new OEM one in.

ICULookN

iTrader: (3)

What do guys recommend for a fuel filter replacement? How difficult is it to replace?

thomasd cook

iTrader: (7)

I just purchased the OEM filter. As soon as I get it I'll install. There is a write-up but I heard it's a real pain in the a$$. Can't wait to knock it out. By the way, anybody know how much the filter's go for?