I just cleaned my throttle body on my 97 ZJ 5.2L by using Carb cleaner. I did not remove the whole throttle body. Is that enough? Or should I do anything else?
cleaning throttle body
rtingdds
1 - 7 of 7 Posts
Gum cutter/Carb cleaner sprayed on the intake and opening the butterfly valve. Spray as much as you want. If you even felt like using an old tooth brush to remove more of the carbon buildup around the butterfly valve. To get a really good clean, you'd really have to unbolt the throttle body and spray down the whole intake to get most, if not all of it out. The engine may take longer to start after cleaning and may run rough. Let it idle for a little bit afterward.
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3,712 Posts
i was wondering what i aught to do to clean that thing off....i'll get around to that when i get real bored.
what should i buy to spray on the TB to clean it out? i was just gunna get some tissues and rub it out real good and scrub with a toothbrush and be done with it.
what should i buy to spray on the TB to clean it out? i was just gunna get some tissues and rub it out real good and scrub with a toothbrush and be done with it.
Don't know what the TB looks like on the V8 but on all our 2.5 and 4.0 jeeps I pull the TB, remove all the plastic sensors and then clean it with a good cleaner and use a brush, pipe cleaners, whatever to get them nice and clean. I clean the sensors by hand with qtips. The sensors are plastic and most of the cleaners are hostile to plastic.
For the engine and intake I take a can of seafoam, dump half out into a bottle, stick a hose in the bottle and hook the hose up to the plugged vac line that 2.5 and 4,0's have, start it up and let it pull the cleaner into the engine, once the bottle is empty I replug the vac, start the engine and SLOWLY dump the remaining half of the can straight thru the throttle body, working the throttle by hand to keep it from stalling till I get near the end, the dump the remaining quarter in to make it stall, Let it sit for 20 min or so then start it back up, BIG SMOKE but it does clean it out well.
For the engine and intake I take a can of seafoam, dump half out into a bottle, stick a hose in the bottle and hook the hose up to the plugged vac line that 2.5 and 4,0's have, start it up and let it pull the cleaner into the engine, once the bottle is empty I replug the vac, start the engine and SLOWLY dump the remaining half of the can straight thru the throttle body, working the throttle by hand to keep it from stalling till I get near the end, the dump the remaining quarter in to make it stall, Let it sit for 20 min or so then start it back up, BIG SMOKE but it does clean it out well.
Cleaning throttle body
It should really be removed. Take off the TPS, MAP sensor and IAC motor.
The pintle and seat for the IAC and passages can really get crudded up. If you really want to see some gack look down into the intake. It will almost make you want to pull the intake and remove the pan to clean it out.
It should really be removed. Take off the TPS, MAP sensor and IAC motor.
The pintle and seat for the IAC and passages can really get crudded up. If you really want to see some gack look down into the intake. It will almost make you want to pull the intake and remove the pan to clean it out.
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