Throttle Body Cleaning
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Joined: Jun 2010
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From: PENNSYLVANIA
Throttle Body Cleaning
Searched on here and a few other sites. My car is idling fine at the second hash mark above zero (400-500 rpm in drive at stop) and at around 650-700rpm in park or with a/c on. Every now and then the idle will drop to first hash mark above zero and the car just doesnt feel....right.
Going to be cleaning throttle body this weekend and have seen many sites saying to take throttle completely off. For our cars (1997 SC400) do we remove entire throttle body or just spray cleanser onto rag/toothbrush and clean with tb still on and while opening valve?
Any tips would be greatly appreciated and any success stories as well to see if this process is necessary and worthwhile
Thank you and have a great day guys
Going to be cleaning throttle body this weekend and have seen many sites saying to take throttle completely off. For our cars (1997 SC400) do we remove entire throttle body or just spray cleanser onto rag/toothbrush and clean with tb still on and while opening valve?
Any tips would be greatly appreciated and any success stories as well to see if this process is necessary and worthwhile
Thank you and have a great day guys
^ No link in above post...
Anyway, you can mostly clean the TB with it still mounted, but it's tough to get in there all the way. But, I don't see why the TB would be the cause of occasional idle droop, as the throttle plate is closed then and the IAC Valve bypass controls the air flow.
Anyway, you can mostly clean the TB with it still mounted, but it's tough to get in there all the way. But, I don't see why the TB would be the cause of occasional idle droop, as the throttle plate is closed then and the IAC Valve bypass controls the air flow.
Joined: Feb 2008
Posts: 4,447
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From: I.E Southern California to SA,Texas
Just did this recently on my 97 SC4, yes remove the whole throttle body to get to the other side and clean the intake manifold mine was dirty with thick carbon build up! It was complete night and day difference after cleaning!
As for the IACV ours is a bit different to remove then the others I have seen on early models and DIY's on here.
As for the IACV ours is a bit different to remove then the others I have seen on early models and DIY's on here.
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