Question about Mercedes-Benz C-Class
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Posted on Jan 02, 2017
you don't have to replaced the manifold just the runner control. see this all the time at work the part is about 175.00 and an hour and a half to install. your local dealer should be able to fix this for you
Posted on Aug 07, 2009
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
A common problem on Windstars, there are two IMRC valves, the only way to fix them is replacement, which is not that hard. They are mounted on the end of the intake manifold and control runner length. There is a front and rear one, I'm not sure which one this is but you'll probably have to go to Ford to buy it and they should be able to tell you with the code number. The problem will not affect driveability that much, but if you have emissions testing at your location, this will likely cause it to fail.
Posted on Apr 05, 2009
I'm assuming you have the 4.2l v6. If this is the case, there are two intake runners per cylinder, one long (torque) one short (horsepower), default setting for these would be long runners or closed.
There is a valve so to speak inside the intake manifold operated by a motor that switches to the short runners when the RPM"s reach a preset point. However there has been a problem with this design, not only with the 4.2's, but the 2.5's and 3.8's and every other motor that uses this design.
The motors go bad, or the valve gets carboned up and no longer moves. If you have a 4.2 start there, if not I'm not sure what is wrong.
Good luck and hope this helps
Posted on Apr 11, 2009
SOURCE: Check engine light came on
THERE IS A VALVE ON THE RIGHT SIDE OF THE INTAKE MANIFOLD THAT OPEN THE RUNNER.IT HAS A VACUUM LINE TO IT.FOR IT TO BE STUCK OPEN EITHER THE SOLENOID IS BAD,THE VACUUM LINE IS BAD OR THE RUNNER IS GUMMED UP WITH CARBON AND STUCK OPEN
Posted on May 15, 2009
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