Drives fine but when it experiences any load it will start to shake and stutter.
No engine light.
How do I diagnose.
Most like coil packs or plugs but not sure how to figure out which one.
Searching for the best price on some Motorcraft SP-509 plugs I found some that are much cheaper on eBay but not sure if they are true Motorcraft plugs. What is your opinion would you purchase a set of plugs from eBay?
Pricing for 8 plugs
Local Ford Dealer $119.99
Advance Auto $58.99 with...
What is the proper gap for the plugs on a 2013 Ford Expedition 5.4 engine?
What is the cylinder layout I have a misfire on #8 and wondering if it is drivers side or passenger side rear?
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