[supra360]

the sound turns on/off... I am thinking it might be the secondary air injector... can some one help me please? thank u!!

 

[vwbrvr6]

Re: high pitch sound coming from passenger side of engine? (supra360)

Does it sound like a vacume when it goes on, and does it mostly go when the engine is warming. If it does that thats your Smog Air pump and is a normal sound.

 

[Evolution Marine]

Re: high pitch sound coming from passenger side of engine? (supra360)

supra360 - It might be the Idler Pulley bearing starting to dry out. - Bob

 

[supra360]

Re: high pitch sound coming from passenger side of engine? (vwbrvr6)

YA!! it sounds like a vacume! it only really turns on when warming up or if it's really cold out !!......... thank u very much!!!!