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 Post subject: f150 4.2 liter IMRC issue
PostPosted: Wed Jul 28, 2010 10:55 am 
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My stiffness is only an illusion
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Joined: Fri Aug 29, 2003 2:49 pm
Posts: 4658
Location: on line looking at car ads
Ok ford guys, I need some help and a recommendation. A friend of mine at work that has a 98 f150 truck w/ 190k miles on it. He’s recently had some issues w/ it and just had the PVC replaced along w/ a hose. The dealership recommended replacing IMRC (Intake Manifold Runner Control) valves to correct a CEL. This seems to be a common problem for the 4.2 liter motors w/ high mileage. My friend lives near Wendell. Any recommendations for a independent mechanic in that area?

What does the IMRC do? Haven’t quite figured that one out. Seems like they can be removed w/ out much impact to the performance of the engine per some of the forums.

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'08 Bullitt mustang, CAM 7
Autox VP '09-'10, President '11-'12, interim President 2nd half of ‘14
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