Where can I get a diagram of the intake manifold runner control?

P2006 = Intake manifold runner control stuck closed, Bank 1.
There is a set of 'choke' valves built into the intake manifold on the vehicle.
They are sticking closed, affecting the fuel to air mixture getting to the engine. The switches/solenoids may have failed so the will need to be tested or replaced.

First make sure the vacuum runner control motor has vacuum at the runner control vacuum control solenoid. Attach a vacuum pump to the runner control vacuum motor (located in upper intake manifold) and verify it open's and closes properly.

Intake Manifold runner control stuck open - bank one:
- Intake Manifold Runner Binding Or Sticking
- Faulty Manifold flow valve
- Manifold flow valve harness is open or shorted
- Manifold flow valve circuit poor electrical connection

There is a factory service bulletin for this problem for 2007-2008 Dodge Avengers. (JS)

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It is attached to the intake manifold, it is a valve that adjusts the runner length of the intake for optimal performance and fuel economy.

I am assuming you mean F150 truck.
The answer is maybe.
Code 305 and 306 are missfire codes for cylinders 5 and 6.
Code 1518 is for a problem with the intake manifold runner control which could cause the other two codes.

P1518 FORD Description The Intake Manifold Runner Control (IMRC) is monitored for failure during continuous or key ON engine OFF self-test.
Possible causes - Intake Manifold Runner Control (IMRC) harness is open or shorted
- Intake Manifold Runner Control (IMRC) circuit poor electrical connection
- Faulty Intake Manifold Runner Control (IMRC) actuator
- Faulty Engine Control Module (ECM)
Read more: http://engine-codes.com/p1518_ford.html#ixzz2KSN6Thui

It is located on the upper section of the intake manifold, it has a vacuum line running to it.

I can tell you what it is and about where it is, but I have not worked on that engine before.

The intake runner should be between the intake manifold and the cylinder head. It is like a sliding shutter. You can sometimes clean them, but they can be replaced. Look online for photos by autoparts stores. This will explain things better if you see it.

Why they put them on cars? The operating range for intake manifolds is limited. Manifolds are shaped for performance or economy. With movable shutters inside the manifold you get a manifold that will do both jobs.

How are they activated? Most use Vacuum controls to move rods that move the vanes or shutters in the runner. In your case, the manifold runner activated and is stuck open. Now you can look at whether the control rod popped off or the activating Vacuum diaphram is jammed. But most use Vacuum power to open and flow to close them.

Your Maker is not alone in using these devices. Other makers have similar problems with their operation. Sometimes soot can build up and they fail to move.

I hope my solution is useful.

p2004 (Intake Manifold Runner Control Stuck Open)You need to take a look at the IMRC actuators on the intake manifold. You can try using a screwdriver or other tool to move the actuators to see if one is stuck in the open position. Do not use your fingers to do this, because if one is open and decides to close it has a bit of force behind it and can injure you. If the IMRC is stuck open, it is usually due to deposits in the intake manifold. Repair involves removing the upper intake manifold and cleaning out any deposits in the IMRC plate area. I would try running some Techron Concentrate in 2 tanks of gas to see if it dissolves enough of the gunk on the plates to free up the stuck one. Certainly a lot cheaper than having to pull the intake manifold and cleaning the plates. Always run tier one gasoline like Shell or Chevron to reduce the buidup of deposits.

they are on the back side of the motor just above the transmission .take off the dog house and you will see the unit.