30K throttle service

[Toyota Technician]

i do a throttal body service EVERY 15 k on all my vehicles due to carbon buildup mostly because of the crappy gas now days, carbon is a byproduct of the combustion engine their is nothing u can do to prevent it and yes it is maintance. carbon stops up ur iac valve that may cause a searching idle condition and sometimes a no idle condition also a throttal body service helps the engine overall preform better it is also very easy to do yourself as for the air filter senser they are talking about cleaning the mass air flow senser are dealer does not even sell this serivice but keeping t clean can only help the maf read more accurate u can by the cleaner at a part store also.

the only way ANY car manufacture can void a warrenty is to directly prove ur modification or in this cace what u didnt buy caused the failure directly without a dought so in my opinion no thay cannot void ur warrenty.

are cars have 100k plugs and 100kish coolent depnding on conditions where u live.
sorry for the long post lust wanted to give accurate info

[churp]

Originally Posted by Toyota Technician

i do a throttal body service EVERY 15 k on all my vehicles due to carbon buildup mostly because of the crappy gas now days, carbon is a byproduct of the combustion engine their is nothing u can do to prevent it and .....

Maybe a stupid question but.....I thought only incoming air goes thru the throttle body or MAF sensor???? Not sure where the engine bypass vent tube goes (think it's downstream of the TB and MAF also) but the oil trap DIY would stop most of that. So aren't we really talking of the crap buildup from what gets thru the air filter....so cleaning is rare necessity with proper air filter replacement????

Edit: Hate to say it but having an oiled K&N filter would possibly add contaminates!

[Toyota Technician]

only incoming air goes through ur maf but incoming air and recirculated air goes through ur tb. the pcv system (positive crankcase ventilation) recirculates blowby gas's, the gas's that pass the piston rings on all cars with a combustion engine witch contain carbon then are recirculated through the crankcase, eventually to the valve cover then are dumped back into the intake boot befor the throttal body and in turn clogs the tb. Have u ever wonderd why ur oil turns black well that is the main reason.

i dont see no reason y a oil catch can would stop particulant matter from passing through to the intake unless it has a dense filtering material in it?

a airfilter does not catch all particulant matter it only filters down to so many microns then anything smaller goes right through the af so y couldn't the maf get dirty and knowing that a maf sensor is a variable resistance type of sensor if their was dirt or anything els on the maf could that not change ur resistance value and cause the maf the read incorectly.

[churp]

Originally Posted by Toyota Technician

only incoming air goes through ur maf but incoming air and recirculated air goes through ur tb. the pcv system (positive crankcase ventilation) recirculates blowby gas's, the gas's that pass the piston rings on all cars with a combustion engine witch contain carbon then are recirculated through the crankcase, eventually to the valve cover then are dumped back into the intake boot befor the throttal body and in turn clogs the tb. Have u ever wonderd why ur oil turns black well that is the main reason.

i dont see no reason y a oil catch can would stop particulant matter from passing through to the intake unless it has a dense filtering material in it?

a airfilter does not catch all particulant matter it only filters down to so many microns then anything smaller goes right through the af so y couldn't the maf get dirty and knowing that a maf sensor is a variable resistance type of sensor if their was dirt or anything els on the maf could that not change ur resistance value and cause the maf the read incorectly.

The blowby gasses are carbon rich true...but mainly oil picked up by the hot gasses as they go thru the oil coated rings or thru the valve seals. One of the posts on the oil catch can stated a sizable quantity of oil collected in 500miles!

Oil was the main air filtering agent for the 1st half century of the automobile (until the mid 50's) along with a metal screen that kept the bugs and rocks out of the carburator....not nearly as effective as todays filters, but they worked.

Basically I'm just stating that an oil catch can and the largest area, smallest micron filter you can use could "reduce" the need to clean the MAF or TB. I've driven cars with well over 200K on them that ran fine and never had them cleaned...preventive maintenence is key.

[WMERCERECU77]

At 30K go to Advance auto or other part store, buy a red and white metal can of seafoam fuel system cleaner. Pour 1/4 cup of it into a shallow dish and suck it up a little at a time through your brake booster hose or other vacuum hose through the throttle body. Cut the car off. Wait 15 minutes and start the car and white out the whole neighborhood with a now very clean throttle body. Pour the rest in the tank.

Pour a whole can in your tank every oil change.