So I want to Seafoa my 02 Maxima SE for several reasons. When on drive but idle ie in a stoplight it vibrates a good ammount. When its idle in parked it also vibrates, Now when i switch it to neutral the vibrations go WAYY down. I got 3 new motor mounts in the car so I dont think its a Mount issue. Also I dont know when was the last time the car got seafoamed and im sure only positive results will come from me doing so.

OKAY now to the question:
- Where is the appropriate vacuum hose location to feed the foam through?
- How many cans in total should i use?
-Should i use the seafoam in the Gas tank AND the oil tank?
- How much Gas should be in the tank?

 

I'm personally not a fan of Seafoam. Some questions:

*What brand are the mounts? A lot of aftermarket ones are junk.
*Are all your fluids, especially ATF & coolant, clean & full?
*Do you use Top Tier prem gas? I'd throw in a bottle of Techron to clean things up.
*When's the last time you did a tune up?

 

No clue what brand they are. They were bought from napa and a trusted mechanic put them in, cant say for his judgement on the BRANDS but im assuming he knew what he was doing.

My fluids are okay i guess, i havent never flushed them since i bought the car. But yes they are full.

Top tier prem gas? Why would I the car is supposed to take 87 unl right?

I did a tune up last year,

So can you tell me where the appropriate vacuum line is located so I can do the seafoam correctly. (if youre not a fan what do you use)

Also i find it surprising 60 people have read this and no one knows where the vacuum line is.

 

also surprising you havent tried searching on here lol, just about every seafoam thread recommends brake booster line iirc

 

Well the VQ35 prefers and runs much better on Premium 91/93 oct, that Premium recommended for maximum performance on the gas cap and book is true. It tends to ping, rough idle etc on 87 octane, 91 or 93 is the way to go.