the dealer service dept. says I need to do this b/c I have "carbon buildup" on the "throttle plate" and elsewhere....they want to charge me $130.....says it will help with mileage and acceleration.....

Anyone hear of this? Should I get it done?

Thanks,

'03 CS Enthusiast
57k miles

 

VQ35's don't have exhaust gas recirculators so I can't imagien how you could have carbon on the throttle plate. Sounds like a big helping of bull**** to me. Ask him to show you the "buildup".

Respect
JET

 

Actually, there is a hose that runs from the rocker cover to the intake tube and the Z does have a PCV valve to allow blowback into the intake manifold.

I'm not sure that cleaning the injectors will do much to remove the buildup on the throttle plate. Actually, the more I think about it, my guess is that it's dust stuck to the throttle plate as a result of the oily film that does build up in the intake system. That hose from the rocker cover allows oil vapors to travel back into the intake, it coats the inside of the plenums, the throttle body and the upper half of the intake tube.

 

As a unit of measure.... I have 24,000 miles on my car, and I could eat off my throttle plate. It's spotless. I looked at it last week. Maybe you have some other issue going on in your motor. After looking at my throttle plate I would say it's not normal to have any deposit on it.

Respect
JET

 

does this service come with vaseline, or at least a meal with it?

save your money

 

Lies...All lies..Never let a Nissan dealer TOUCH your car, end of story..