Rough starting for sev months, then 'check engine' light came on.

2007 MERCURY MILAN
86,000 MILES • 2.3L • 4 CYL • FWD • AUTOMATIC
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GYROJOE
  • MEMBER
  • 1 POST
The repair shop said the the IMRC motor was stuck open due to carbon buidup. Charged me $50 for diagnostic and $90 for the cleaning. So, what is this IMRC - what does it do?
Mar 26, 2015 at 6:01 AM
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ASEMASTER6371
  • ✓Experienced Mechanic
  • 52,796 POSTS
intake manifold rudder control. there is a throttle valve inside the intake that directs air to the cylinder and is controlled by the pcm. when it is carboned up it will stick open or closed effecting performance of the engine.

Ford has used it since the late 90's.

Roy
Mar 26, 2015 at 7:05 AM
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