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Thanks for the replies. Makes sense. I'll have to do a more detailed search for cracks. Does anyone know of another way to test for PCV leak other than finding the crack itself?

Ok, lets try this again. I used Photobucket this time... Ok, I'm frustrated. I have a 2001 Nissan Pathfinder with just over 100,000 miles. This is Nissan's 3.5L VQ series V6. I've been getting high silicon & lead readings and figure out what's going on. The air filter seems to have a good seal...

For some reason they're working when I leave the posting & then hit back.

Haven't done that. Ok thanks. But if there was a vacuum leak wouldn't it throw a trouble code? Especially since a loose gas cap can?

I see where I screwed up posting the pics & posted a new post. Moderator can you delete this if you're watching?

I can't get the photo links to work!!!

Sorry, images aren't working & I've run out of time to edit.

Ok, I'm frustrated. I have a 2001 Nissan Pathfinder with just over 100,000 miles. This is Nissan's 3.5L VQ series V6. I've been getting high silicon & lead readings and figure out what's going on. The air filter seems to have a good seal & it looks clear just downstream of the filter. I don't...

Ok, I'm frustrated. I have a 2001 Nissan Pathfinder with just over 100,000 miles. This is Nissan's 3.5L VQ series V6. I've been getting high silicon & lead readings and figure out what's going on. The air filter seems to have a good seal & it looks clear just downstream of the filter. I don't...