JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.

You are watching: 2003 nissan sentra pcv valve location


*

Altima 2.5s KY1 SilverAdvance Raybestos RotorsNGK Platinum Reflectex Insulationfull interior sound InsulationBlue interior LEDsFull LED Exterior and custom LED InteriorRebuilt Head gasket Intake matched and ported.
You have one, I think its right off of the front cylinder head. If I remember right its the one that the hose is attached to that goes to the intake. I could be wrong, but my Maxi 3.5 had one there. Chris
*

You have one, I think its right off of the front cylinder head. If I remember right its the one that the hose is attached to that goes to the intake. I could be wrong, but my Maxi 3.5 had one there. Chris
Yep, your right 02vq35 Its right behind the 2nd spark plug on the back of the PLASTIC valve cover. Its funny bit the ECM mentions nothing about it. Can you even buy a new one? You can clean them out, I think :dunno: It has a Tourque value there, like 2 Nm which is like nothing. If you piss w/it let me know.
Altima 2.5s KY1 SilverAdvance Raybestos RotorsNGK Platinum Reflectex Insulationfull interior sound InsulationBlue interior LEDsFull LED Exterior and custom LED InteriorRebuilt Head gasket Intake matched and ported.
I couldn"t find them at Autozone, Murray"s, or Advance and the dealer was closed. I just cleaned it with a little bit of brake cleaner and the varnish came off. Not a problem, I figured if it was on the Maxi it would be on the Alti. Chris
*

some of the new PCV valves are not the typical ones you would expect to find. Most of the new ones are just an orifice tube. They don"t rattle when you shake them. Just make sure it"s cleaned out and you should be fine.
Do I look like a cat to you boy? Am I jumpin" around all nimbly bimbly from tree to tree? Am I drinking milk from a saucer? DO YOU SEE ME EATING MICE?
On my 2003 3.5SE Its in the rear in between the driver side and pass side on the valve cover but I have a Question do anybody know why my PVC valve had oil in it when I pulled it out and it oil down in the hole when i change my oil can I pour cleaner in the hole cause that hole lead back into the oil right
? Oil In A PVC ValveI have smoke coming out my rear tail pipes I replaced my Pvc valve and it had oil on it. Since the hole from the Pvc valve is oily and when I change my oil by the pvc hole being on the rear valve cover can I pour a cleaner down the hole to clean it out since that hole leads back in to the valve cover that will run down into the oil right.
*

*

^^Do not pour anything down the PCV valve hole. That will accomplish nothing. The hole simply leads into one of the valve covers and back into the crankcase. All you need to do is change the PCV valve whenever it is all gummed up and you"ll be fine.The PCV valve simply allows the vapours that come off the hot oil to be recirculated into the intake and then into the combustion chambers where they will be burned off. The PCV valve stops any oil from entering the intake, which would explain why yours has some oil in it. That is normal (on one side only - the side that leads to the valve cover).
well thats funny because I had a good amount oil when I took the intake apart. I think part of the oil usage issue I have with my car is a direct result of the PCV valve dumping oil into the intake. all my hondas and all my other cars have had a vertical pcv valve. Nissans are horz. Hmmmmm.
Altima 2.5s KY1 SilverAdvance Raybestos RotorsNGK Platinum Reflectex Insulationfull interior sound InsulationBlue interior LEDsFull LED Exterior and custom LED InteriorRebuilt Head gasket Intake matched and ported.
^Try replacing it and see if that helps. Perhaps your PCV valve is ****ed up and it"s not closing when oil gets splashed up into it. It should only allow vapours to pass, not oil.
Please do not bump 5 year old threads...The PCV valve is located between the valve cover and the intake manifold (in the valve cover). Remove the engine cover and you will see the hose...
A better shot
Hey guys, sorry to be initiating an old thread...but my idle has been a little rough lately and i"m going to replace my ignition coil and spark plug for the problem cylinder (misfire - P0301) but i would also like to clean/replace my pcv valve as i"ve neither done it or had it done before. so can anyone be kind enough to post a better shot of where the pcv valve would be located on a 03 altima 2.5 S. just a general shot and then a focused shot to narrow down the location....oh and if possible a decent write up on how to go about it....help me from F"ing anything up...Thanks,Allen.
Hey thanks for the quick response...but in the last picture which is the thing I remove and could you kindly give me brief write up as to how I can remove this thing...also is it recommended to clean this thing (if so, with what) or to replace it?I"m just getting my hands under the hood of my altima so I"m not familiar with this and can"t afford to pay a mechanic to do something I can do myself...with the help from people here.Thanks,Allen.
It was a pain to get to. 23mm wrench or possible vice grips or channel locks.I gave up and took it to my mechanic. He charged me $30 to change it.

See more: Driving Distance From Denver Co To Las Vegas Nv Er, Co To Las Vegas, Nv


Welcome to Nissan Club, one of the largest Nissan forum communities. Discussion, reviews, maintenance and more.
2002-2006 Nissan Altima Discussion (2.5 & 3.5)2007-2012 Nissan Altima Discussion (2.5 & 3.5)General Nissan Altima Discussion (1993-2001)2013-2018 Nissan Altima Discussion (2.5 & 3.5)Engine Performance (2002-2006)