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An ERG is a unit of work. An EGR is a valve that usually sits on the manifold and is controlled by a vacuum diaphram.
You can tell when a manifold tuning valve is bad when oil is leaking through it. You also can tell by inserting the dipstick into the valve and seeing if oil comes out through the dipstick.
There is air in my manifold and can't find the bleeder valve to release it so how do i bleed my manifold?
do you mean the PCV valve? the PCV valve is located in the intake manifold
lawn spirinkler/irrigation system
If you are talking about the EXHAUST manifold then most of the time it's the valve cover gasket that is leaking oil. REPLACE VALVE COVER GASKETS. If you are talking about the intake manifold then it has 2 rubber gaskets in the front and rear of it that leak oil real bad. If oil is on the left are right top sides of the intake manifold were the valve covers are then it will be the valve cover gaskets that are leaking oil.
The PCV valve should be under the intake manifold- pretty tough to get to w/o actually taking off the manifold. The EGR valve should be on the intake manifold itself. The O2 sensor should be threaded into the exhaust manifold(id by wire attached to it). Good Luck;)
The pcv valve uses vacuum created by the engine sucking air through the intake manifold to suck vapors from the crankcase into the cylinders to be burned with the air/fuel mixture.
The PCV valve is located in the back of the lower intake manifold. It should have a 3/8" hose going from the PCV valve to a vacuum source on the upper intake manifold.
Yes, back of intake manifold.Yes, back of intake manifold.
its on the side of the engine! behind the intake manifold... between the intake manifold and the firewall.