mowerman

Just bought a 2004 Maxima and am now getting a rough idle, as soon as I apply a tiny bit of fuel it smooths out? Any suggestions

mrbat

Is it jumping ? Might be a injector or just need the hell drove outta it to show it whos boss

Sent from the batcave

Lovemycar

Could be spark plugs how many miles on it? also you might want to check your MAF and throttle

po8pimp

Do the seafoam on youtube by chernmax, clean your MAF sensor with MAF cleaner. Make sure your air filter is clean. If that doesn't work, you might have to do the Idle Air Relearn Procedure, which is not very hard to do.

infiniti medic

Anyone ever think there could be vacuum line problems. The rubber vacuum line tend to dry rot after years. I know the reply is late. Better late than never.

LiquidEliteMax

infiniti medic, can you take a pic of the vacuum line and post it please. I am having the same issues

po8pimp

Vacuum line issues are not common on this car. If this is the case, you would be the first. I recommend doing the seafoam as mentioned and cleaning you MAF sensor.

ACee

2012 post....

po8pimp

Lol just saw that. Hard to tell on phone.

BRUISER

Do the Seafoam, then new plugs and air filter

ACee

....

infiniti medic

Like I said better late than never. My max is an 07 SE with 118900 on the odometer. I just replaced the vacuum lines that go to the vias control. As well as the lines that go to the vacuum canister that sits on the intake. Wow like a new car. I found a tear in my vacuum which caused a rough idle,but produced no mil lamp. they were looking worse for wear. Also just replace rear wheel bearings and replaced rear valve cover gasket which was leaking. Now she purrs like a kitten. I did all the work myself. The vacuum lines are easy, just do 1 at a time, measure twice cut once. And don't change length of them. The valve cover was a pita but the bearing easy.

infiniti medic

Po8pimp is correct. The vacuum line are not common, just check em, and if you find they are cracked then replace them. Auto zone sells the tubing. Take a piece to match. 3 ft of the tubing will be enough. Cost about 4 bucks.

Kryogen

will look into this this spring as my idle is a bit rough and jumping a bit also. no cel.

po8pimp

WTF on the link. This post should be deleted.