2003 3.0 misfires on cylinder 4,5,6 loud whistle under throttle
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2003 3.0 misfires on cylinder 4,5,6 loud whistle under throttle
My truck has a gradually worsening whistle (chirp above 3000 rpm) while the throttle is being used. Also throwing codes for misfires on cylinder 4,5,6 and sometimes misfire on startup. I suspect a vacuum leak is the culprit but I am not sure where to start looking and was wondering if anyone else has had a similar issue.
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BreeOge
General Technical & Electrical
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02-10-2008 02:50 PM