2007 f-150 5.4 Random misfire starts if I hold a steady speed for a few miles for the most part under 45 mph
Asked by RichMcworken Jun 03, 2017 at 02:13 PM about the 2007 Ford F-150 STX SuperCab Short Bed
Question type: Maintenance & Repair
1 Answer
How many miles are on the truck. I would put it in drive while holding brake sitting still and load the engine. Depending on miles. Possible tune up and maybe a coil. Fuel filter, depending on mileage and might need a induction cleaning. Do not use sea foam or any other cleaners. I pull the main vac from booster and take about 6 to 8 oz of water and gradually pour the water in main vac while someone else in the truck keeping rpms up