Bob Rosadini Posted April 5, 2024 Share Posted April 5, 2024 My son has a 2015 150 with 180,000 miles idles rough and also breaks up at speed. Shop he goes to says it definitely has one bad injector. I don't think he has ever done anything to clean intake valves. Anyone have any experience with the CRC product? Quote Link to comment Share on other sites More sharing options...
92merc Posted April 5, 2024 Share Posted April 5, 2024 I don't have any first hand experience. But I've watched a few YT videos of various mechanics using various similar products. These were done on the 4 cylinder Escape models. But I'm sure the F150 would be the same. Liquids appears to produce weak results. What seems to work best is removing the intake and walnut blasting. Or one video I saw, they used a bunch of zip ties on a drill to act as a scrubber and clean it up. From the before/after pictures, those did a way better job. But I would think you want that injector replaced first. Just my 2 cents. Quote Link to comment Share on other sites More sharing options...
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