Join Date: Apr 2003
Drives: 94 Taurus GL 3.8L PEP204A
99 Ranger 4.0L 4dr 5spd auto Payload & Tow pkg
Rep Power: 37
Had a similar sounding random miss on my then new 99 Ranger. Dealer performed a "wet down" test of each plug, wire & coilpack. Found an external crack in #6 spark plug insulator.
After I thought about it some, I remembered it cutting out bad a couple of times while driving up a slight grade in a frog choking rain storm, that should have been a clue for me about a spark problem.
Anyway if the problem seems worse during humid or wet conditions, or when the engine is under load, maybe consider raising the hood at night & look for arcs & sparks & or do the wet down test of each plug & wire all the way back to the coil, or coilpack, or cop
, with a spray bottle of water & look for arcs & sparks, or a sudden rough idle.
More thoughts for consideration, let us know what you find.
94 Taurus GL 3.8L PEP204A
99 Ranger 4dr 4.0L 5spd Auto
Payload & Tow Pkg
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