Help with a 2004 g35?

Question

hi.. recently, in my g35 coupe, ive noticed rougher idling...not engine noise..but small vibrations in the steering wheel, and shifter. it just started happeneing...

any ideas?

Answer 1

Shell Gas 93 octane well not needed for city driving 89 is fine but anyway have the spark plugs checked just to make sure that they are burning clean. A dirty air filter will cause this problem at idle too. At worse a rubber engine or trans mount that may be worn & can give off vibration in the steering wheel and shifter too. Still a fairly new car doesn't make a difference these parts are always under stress and load when driving.    

Answer 2

you should be using premium fuel in the G35 but the rough idle maybe coming from the fuel even with premium because of the ethanol they are adding more of to at most gas stations now but another cause could be the throttle body and the injectors are getting a build up of carbon

Well chances are with almost 60k on it the throttle body is all gummed up with carbon and will cause the problems in wich you are talkin about if you were to come in to dealership i wouls definitely recomend a Fuel induction service wich cleans the throttle body,runs a clean thru the intake and adds a complete fuel system to the tank very good service also make sure your using a factory air filter because the after market filters dont fit properly and flow air prperly and will ruin the mass air flow sensor and damage the throttle body also the ethanol they have been adding to gas has increased over the last few months wich also will contribute to the but not too bad

Answer 3

If you have roughly 60k miles on your G35 it's time for you to go for you maintenance. I would just bring it in and have them check your steering fluid, power windows, oil etc.

Answer 4

Is it starting to get colder where you are? Are you using Premium? Maybe you lost a wheel weight.