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2004 to 2008 F-150 and Mark-LT 4.2L, 4.6L and 5.4L equipped F-150s and Mark-LTs |
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#11
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I agree with Grabber523 check your vaccum hoses especially the one for the brake booster. Remember there was a recall on that one.
Is this happening while in d at a light or just sitting there in p. Maybe add a little to the idle using the gryphon and see what happens if ones availible. Lars
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