Im going to try and change these for new replacemensts any advice would be helpful.

 

Those things are easy to get to so I doubt that you will encounter any problems.

 

some advice would be..... if i can remember i read somewhere you can possibly caulk the obvious areas and see if the codes go away.

I would need a picture of it to figure it out definately before I jump into it, but I am thinking just caulk the obvious areas where a leak would occur first instead of replacing them and then if that doesnt work replace them.

I have had this code for... 2 years

 

I know it needs to be changed, the dealer attempted to clean it but couldnt separate the valve from canister.

 

The following threads have some useful information. I also had a faulty valve, and purchased the Dorman part from Amazon.com for less than $50. The fasteners that hold the valve to the canister are typically rusted and you will probably break them while removing the old valve, but you might get lucky (douse them with some penetrating oil a few times).If you do break them, you can install the new valve with some RTV silicone or Goop, but let it dry a bit. As Prophecy suggested, you may be able to seal the canister if it's leaking. Replacing it with a new one, even aftermarket, is fairly expensive. At least one member obtained one from a salvage yard for a pittance.


http://forums.maxima.org/5th-generat...02-maxima.html

http://forums.maxima.org/5th-generat...air-leaks.html

http://forums.maxima.org/5th-generat...arket-oem.html