My 97 Taurus 3.0 Vulcan is pinging under load. No codes, no Check Engine
light, idle seems to be slightly rough with the warmer weather. I use good
gas always from the same station.
I did plugs, wires, and all filters about 9 months ago (~8,000 miles), and
run mobil1 synthetic & Purolator oil filters.
What should I be looking for?