What is the manifold in a car, where is it and what does it do?

Answer 1

you actually have quite a few manifolds in a car, there is the intake manifold, which is on top of the engine/on the rear of the engine, exhaust manifold, which is located on the middle side/front/inline with intake, there are heating cooling manifolds, and various types of manifolds on the engine, like EGR, PCV, and the like. The intake manifold on carburated cars mixes the air/fuel and delivers it to the cylinders to be combusted, on fuel injected it delivers air to the cylinders that is then mixed with fuel via the injectors, the exhaust manifold provides a means for the spent air/fuel to exit the engine, the climate contorl manifolds are like plates, grilles or whatever to change the functions of the system. from A/C to heat to defrost to floor etc.. The EGR is a Exhaust Gas Recirculation manifold, which pulls unspent fuel from the cumbustion chamber and and mixes them in the lower part of the intake to be burned by the engine, PCV is Primary Crankcase Ventilation, which pulls fumes from the crankcase and lowers the operating pressures inside the engine, it is usually located on the valve cover. EECS is Evaporative Emissions Control System, which pulls fumes from the fuel tank to be burnt in the combusion chamber. Hope this helps and didn't bore or confuse you, lol...

Answer 2

There are two, intake and exhaust.

The exhaust manifold directs the exhaust fumes from the cylinders to the exhaust pipe, and then through the muffler and out the tail pipe. It is connected to the sides of the engine block. Look for big metal tubes that are bolted onto the block that go down toward the ground and join together into a larger pipe, then turn toward the back of the car. There it is bolted to the exhaust pipe.

If you don't mind getting a little dirty, you could lie on the ground and follow the exhaust pipe back toward the engine to where it's bolted to the manifold.

The intake manifold directs air into the cylinders to burn the fuel. It is at the top, below the air filter. (That's in a big round metal canister. The top is usually held on with a wing nut.) It's between the air filter and the engine block, so it's a little more difficult to see (a lot of stuff in there), but it's also a set of metal pipes.

Answer 3

Intake Manifold

The network of passages that direct air or air-fuel mixture from the throttle body to the intake ports in the cylinder head. The flow typically proceeds from the throttle body into a chamber called the plenum, which in turn feeds individual tubes, called runners, leading to each intake port. Engine breathing is enhanced if the intake manifold is configured to optimize the pressure pulses in the intake system.

Exhaust Manifold

the network of passages that gather the exhaust gases from the various exhaust ports and routes them toward the catalysts and mufflers of the exhaust system. A manifold with free-flowing passages of a carefully designed configuration, called a "header", can improve breathing.