What to do if your intake manifold Runner Control is bad?
Step 1: Clear the codes. If the indication of a bad intake manifold runner control was a check engine light and an accompanying trouble code, clear the engine computer after the job. OBD II scanners have become very affordable so they are accessible to the home mechanic.
Can a variable length intake manifold cause a problem?
The intake manifold runner control system — which often goes by other names, such as a variable length intake manifold — is one such innovation. A failure in the intake manifold runner control system can cause several problems. These are some of the most common.
Why do you need an intake runner control flap?
While intake runner control flaps were reasonably effective in improving the flow dynamics of air through intake manifolds, the advent of variable length intake manifolds has made it possible to control the flow rate of intake air over a wider range of engine operating conditions.
How does an intake manifold control system work?
To understand how the system works, it’s important first to know how air enters an engine. After getting pulled through the air filter, it travels through the intake tube and throttle body to the intake manifold. The manifold features individual runners, which distribute air to ports in the cylinder head.
What are the symptoms of a bad intake valve?
A typical symptom of bad valve seals/guides is you will notice oil/deposits built up on the side of the spark plug facing the intake valve. With worn rings, usually the entire tip of the plug will have oil/deposits on it.
What is the intake manifold tuning valve?
An intake manifold tuning (IMT) valve is used to change the intake manifold plenum configuration. When the IMT valve is open, the intake manifold is configured to one large plenum.
How does variable intake manifold technology work?
How does the variable intake manifold work? The air required for combustion is guided through the variable intake manifold to the intake valve. The performance conditions for the engine have various requirements regarding the length of the manifold. The speed at which the air enters the cylinders is crucially important here. This should be as high as possible, whatever the engine speed.
What is an intake manifold actuator?
The variable intake manifold actuator (VIMA) controls the positions of the internal flaps and valves on the intake manifold runners to alter the amount and speed of air induction.