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Normal missfire count?

Nctruckman

Active Member
Joined
February 17, 2012
Messages
91
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City, State
NC
Year, Model & Trim Level
1994 Explorer XLT 4-Dr
2003 sport trac 4.0
Had new ford chains, guides, tensioners and heads rebuilt in 2019. Has good compression, new ford plugs and wires.
Occasionally at idle I'll notice a hiccup of sorts.
I have a bluetooth obd reader, watching it, It has a missfire count of up to 10 when I drive 60 miles round trip commuting. Is this normal or an issue? I put in a new motorcraft coil last night, had 2 missfires on the 30 mile ride to work this morning. Pcv elbows were done, pcv valve was done while the engine was apart too.
 






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