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.
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.
