sounds like the plastic tube from rubber tubing (between filter and tb )and that plactic tube connects into back valve cover
The hissing may be due to a disconnected vacuum line. Look for a loose vacuum hose and/or a tube on/near the throttle where it might connect to.
first you unhook the two hoses coming out of the passenger side firewall under the hood and connect a hose between them first you unhook the two hoses coming out of the passenger side firewall under the hood and connect a hose between them
its between the intake manifold its self and the air box(where the filter goes) will have to cables coming from it
CHECK COIL PACKS
The low pressure valve on a 93 Chevy Corsica is under the hood. It is on the larger hose coming off the AC air compressor.
at end of hose coming from throttle body,or carb.
Its not connect to the internet
It is just behind the throttle body. it is socket like thing that has a wire coming out of it.
You need to have it checked for codes. If you fix the cause of the codes the light will stay off.
The throttle position sensor is on the throttle body. That's the part of the engine that controls the amount of air allowed into the engine. To find the throttle body, follow the air intake routing toward the engine. The throttle body is the part that sits on the intake manifold. To find the throttle position sensor, follow the throttle cable to the throttle body. If it helps, have someone press down and release the throttle pedal while you're looking for the throttle body/position sensor. The throttle cable causes a shaft to turn, that's the part that controls the air coming into the engine. The throttle position sensor is connected to that shaft.
Just follow the big black round plastic intake hose coming from the air filter box and going to the engine. It will clamp onto the throttle body housing.
It is located between the air filter and the throttle body. it is the hard plastic tube with a square flat box attached to the bottom with a wire harness coming out of it.