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

Tiny
GYROJOE
  • MEMBER
  • 2007 MERCURY MILAN
  • 2.3L
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 86,000 MILES
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?
Thursday, March 26th, 2015 AT 1:01 PM

1 Reply

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 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
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Thursday, March 26th, 2015 AT 2:05 PM

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