hissing coming from throttle body
Super Moderator

Joined: May 2001
Posts: 11,851
Likes: 2
From: Rancho Palos Verdes, CA
Vehicle: 2008 Toyota Prius 2006 Suzuki SV650S
Just wondering...how you do hear the noise from the TB....when you are in 5th gear at 3000 RPM flying down the road? Is it really that loud?
How did you pin-point the sound to the Throttle body from the drivers seat while going down the road?
You cannot hear the noise in neutral? So if you pop your hood, and play with the throttle, you cannot re-produce the noise?
Then yes...If it is that loud that you can hear it over the road noise at freeway speeds...then you should have it looked at right away.
Just wondering...do you have the stock airbox or a CAI? What design/system do you use?
How did you pin-point the sound to the Throttle body from the drivers seat while going down the road?
You cannot hear the noise in neutral? So if you pop your hood, and play with the throttle, you cannot re-produce the noise?
Then yes...If it is that loud that you can hear it over the road noise at freeway speeds...then you should have it looked at right away.
Just wondering...do you have the stock airbox or a CAI? What design/system do you use?
ok ill answer evryquesion here.. individually smile.gif try to pinpoint it
as for could it be maybee clutch or transmission. when i pop the gas peddle in any gear except neutral i hear teh screach not the normal one associated with the conical filter
would teh clutch feel any different at all.
it does not slip any
ok randon well to narrow it down a little more i have noticed it is only when the gas pedel is depressed at a certain distance from the floor so this noise can start at 2500 or it can start at 4k but goes away after i remove teh gas pedal from this position
i have pin pointed it to the throttle body for the fact that one it wasnt their before
if i play with the trottle with the hood popped i can not hear this as i cant hear it while teh car is in neutral it must be in gear
right now i have a cone on the end of my maf sensor.
it is loud that you can definettly hear a fair ways .
as for could it be maybee clutch or transmission. when i pop the gas peddle in any gear except neutral i hear teh screach not the normal one associated with the conical filter
would teh clutch feel any different at all.
it does not slip any
ok randon well to narrow it down a little more i have noticed it is only when the gas pedel is depressed at a certain distance from the floor so this noise can start at 2500 or it can start at 4k but goes away after i remove teh gas pedal from this position
i have pin pointed it to the throttle body for the fact that one it wasnt their before
if i play with the trottle with the hood popped i can not hear this as i cant hear it while teh car is in neutral it must be in gear
right now i have a cone on the end of my maf sensor.
it is loud that you can definettly hear a fair ways .
my noise come from a throttle body area and only when pressing gas once at low rpm, is my throttle body damaged or this is normal. Please respond since you a better explanation



