Question about Chrysler 300C
Location of the intake manifold runner position sensor / switch
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Posted on Jan 02, 2017
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.
Posted on Dec 19, 2008
There are some Electric Vacuum solenoids on top of the motor. They have vacuum lines running down to some manifold vacuum pods. When the solenoids stick, the vacuum does not shut off and the pods remain open.
You can check for electric continuity on the solenoids. If they check out, the internal parts may be stuck. You can disconnect the vacuum lines and see if one still has pressure when the engine is off. The solenoid that runs to it is probably open. You may be able to work some WD40 into the solenoids and free them up. If the solenoids have no continuity, they are bad but remeber to check them with and without vacuum.
Remember to reset the computer by disconnecting the NEG cable 10 minutes or the defect will falsely report 25 -35 Startups with the wrong info.
Posted on Dec 21, 2010
The engine and transmission in this cars drive train are fully electronically controlled by a computer called the PCM (Power Train Control Module). Whenever a problem like this occurs the computer stores a record of the problem (there are of course some exceptions to this, like the fuel pump, engine coolant temperature sensor and MAF sensor for instance) in the form of a fault code in its memory, to read these fault codes you must have the systems memory scanned with a special tool. Once the fault code(s) are read you then must perform the appropriate diagnostic testing to find and resolve the problem(s) DO NOT REPLACE ANY PARTS UNTIL A TRAINED TECHNICAIN HAS DIAGNOSED THE PROBLEM TO AVOID SPEDING YOUR HARD EARNED MONEY ON PARTS THAT MAY NOT CORRECT THE PROBLEM
Posted on Jul 14, 2012
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