About GM Intake Manifold
The function of the intake manifold is to fairly distribute the air-fuel mixture to the cylinders as well as to the carburetor on a non-fuel-injected engine. The intake manifold holds the opposite function comparing to the exhaust manifold which collects gases from the cylinders. Sometimes, even the Check Engine Light is on, you have no idea which part in the engine system should be checked, so it is necessary for you to know the signs of a failing intake manifold. A vacuum leak can be the reason for engine stall since excessive air coming to the engine. What’s more, it can also cause a very high idle rpm, or idle to constantly rise and fall on its own. A hissing noise is also an indication for a failing intake manifold. Check your intake manifold in time to make sure you have a safe drive. We are glad to offer you GM genuine OEM intake manifold with a discounted price.