I need advice on replacing spark plug tube seals! Help please! I feel like I’m banging my head against a brick wall here.
2013 Ford Focus Flex Fuel - 4C - 99,xxx miles.
It’s been having misfire issues and a drain on the battery.
Anyway, I replaced the spark plugs and the valve cover gasket...
Last week i did a 40k service at the dealership, and i changed the sparkplugs, they’re supposed to be motorcraft sp537, but instead they fitted sp578 into it, is that okay or would it make any problems to my ecoboost 2.0 engine?