If you have power brakes look where the large hose that goes to the brake booster connects to the engine and that is your main vacuum source.
I have a 2000 Malibu, I can help you out if you can give me some more info...where on the intake manifold are you referring to?
Might be a vacuum leak
under top plenum on 3.1 engine at intake manifold.
The vacuum lines on a 2000 Chevy Silverado run between the intake manifold and multiple valves across the top of the engine. The vacuum pressure is generated by the engine's compression.
what is the tire size for a 2000 Chevy Malibu ls
Where is the ecm located in a 2000 Chevy Malibu
its on the right side of the throttle body where the plenum hose goes into the intake manifold
loose or damaged wires in ignition system.intake manifold vacuum leaks in intake or hoses. or its not getting fuel to injectors.
how to replace actuator on a 2000 malibu
on 3.1--14.3 gallons--2000 Malibu
if it is the same number on it!!
Yes. '99-'01 same