If the intake manifold gasket has failed then it can cause many issues. Air leaks, known as vacuum leaks, will cause an erratic idle, stalling, and fuel problems.
The intake gasket is the gasket that conncects from your air filter into your intake manifold
jaguar 2001 Lower Engine Intake Manifold Gasket
Assuming this is a 4.3L engine, the upper intake manifold gasket would be between the upper intake manifold and the lower intake manifold.
What engine? and ensure it is a bad gasket, not an intake plentum.
Simple method... get some carb cleaner or starting fluid. With the engine running, spray the area where the intake manifold gasket is. If you experience sudden bursts of increased RPMs, you have an intake manifold gasket issue.
An intake manifold gasket is a malleable material that is set between the air intake manifold, the cylinder heads and the block in a gasoline powered internal combustion engine. Intake manifold gaskets prevent leakage of air or the air-fuel mixture by sealing the gap between these various metal engine parts.
It is the sealing part that seals the intake manifold to the cylinder heads and to the top of the engine block. The intake manifold is the part that distributes the air to the cylinders. It also can house the thermostat, the injectors, the throttle plate. An intake gasket could leak coolant, engine oil, or engine vaccuum.
Yes. If an intake manifold gasket was not installed properly or has somehow become damaged the engine will pull air through the opening.
directly under the intake manifold
The intake gasket is a piece of material, sometimes a paper material reinforced at times with copper, that installs between the engine, and the intake manifold to seal the gaps to prevent air from entering. The intake manifold is a part of the engine that attaches to the carburetor, or injection system to deliver the correct air/fuel mixture to your engine for burning in the combustion chambers to make the power to drive the wheels. If that gasket is bad, excess air will enter the cylinders causing the engine to run poorly, or not at all.
A manifold leak is usually in reference to a failure of the intake manifold gasket. It can leak air, oil or coolant. It can leak to the outside of the engine or internally into the engine. A manifold leak may also refer to the Exhaust manifold that is leaking exhaust fumes from a bad gasket or a crack in the manifold.
The year, engine size and if it is the intake manifold or an exhaust manifold gaskets would help.