i keep getting random misfire codes, and when i take off from a stop i get one or two pings. Other than these issues the truck runs fine, no shudders, shakes, or knocks. I replaced plugs 6k ago with OE motorcraft plugs. Could i have a weak coil? I also run non alcohol 87 octane fuel. Would it do me any good to run a tank or two of premium through it? 02 4.0 sohc

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2002 4.0 4x4 auto.
Black Rock steelies, 32" Cooper Discover AT/3
Power leather buckets, Full length console
EATC, OHC, Lighted visors, Wite cluster
>CLICK<

I'd throw in some injector cleaner first

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2021 F150 5.0 Screw

Past:18 F150 2.7, 16 F150 5.0, 14 F150 5.0, 07 F150 5.4, 03 Ranger 4.0

Master Certified Ford Parts / Warranty Admin

i've done that already and it hasn't helped. It's getting irritating quite frankly.

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2002 4.0 4x4 auto.
Black Rock steelies, 32" Cooper Discover AT/3
Power leather buckets, Full length console
EATC, OHC, Lighted visors, Wite cluster
>CLICK<