My AEM CAI is hissing, but only at a certain position (about 30% pressed) of our gas pedal. It hisses when you're pushing the gas pedal down, or coming off it, but always at the same exact point. Its annoying as hell. Anyone ideas ?

 

Mine only hisses when the car is not warmed up... once it warms up I do not hear it at all. When it is cold, I hear it around the same time as you... with the pedal pressed about 1/4 of the way down.... but, after about 2 min. or so it's gone.....

 

Yeah, this one hisses all day, every day. Cold or hot, rain or shine, slow or fast.

 

It hisses or you hear it sucking when you gas on it?

I hear mine suck everytime I press the gas if I listen close enough.

 

Hissing is good. That means it's sucking a lot of air And more air means more horses.

Do you also get hissing when you turn off your motor? I think that would be normal.

 

mine hisses when i am lightly pressing on the gas, and even wissles when i am barely touching the gas.

 

mine doesnt hiss at a certain throttle point, but it does hiss right b4 a gear shift wen its not warmed up...go figure =P

 

Hissing is an under-statement. This noise is a LOUD whistle that you can hear even with the windows closed. Im thinking its something in the throttle body thats rubbing metal to metal when the valve rotates to a certain point. Ive had CAIs on 5 cars now, this is definitely not normal lol.

 

so exactly what sound is normal and when?

 

its because the tl type s uses physics to power our engines so well with the intake pleume and the renosance stuff...its totally normal...

 

get used to it!! i have.....take out the resonator and that is what you r going to get

 

yeah it only hisses during when you first start your car in the morning, but when its warmed up... its gone.....also occurs when you step on the gas...