CVT fluid was replaced about 2 years back at 48,632 km. Regarding the throttle body its been two years since i last had it opened and serviced. I was told by a senior member here on PW Xulfiqar that there is no need to unnecessarily open the throttle body. I have quoted his reply to my post below:
Originally Posted by tyrone_40
[I]@Xulfiqar,
Please clarify if I need to clean / service my throttle body. The last time I did it, was over 18 months back. They removed the entire throttle body and cleaned it with petrol, sprayed carb cleaner. Is it necessary to do it at least once a year or only if problems arise? The care is a toyota belta.
Thanks[/I]
Do not clean the throttle body - leave it alone. There is no reason to clean it unless its jammed stuck.
Originally Posted by tyrone_40
Thanks Xulfiqar. What about carbon buildup? When you remove the air filter box they usually spray carb cleaner to remove the carbon? Is that also not necessary?
Leave it alone, it does not hurt anything, the only time you clean the throttle is when it actually blocks off more than 25% or starts to jam. If you are so worried about "carbon" on the throttle you should look inside the intake manifold - you will be surprised at the amount of muddy build up in there.