Recently I’ve been experiencing some intermittent engine problems, particularly when it is damp outside. The problem occurs after the vehicle has just been started for the day and I start accelerating. When I stop at a light the engine begins to shake, then when I accelerate it still feels like the engine shakes and has trouble picking up to accelerate. After driving for a few minutes the problem subsides and I don’t experience it for another few days, or until it is foggy/damp outside.
I took my truck to a garage to get things checked out but they couldn’t find any clear problems (no arced wires). Does anybody here know what that problem might be?
Looks like the guys have this figured out for you. Old plug wires are usually the cause for running bad when it’s humid outside. Sometimes the heat from running the engine will bring plugs wires back to life somewhat but they need to be replaced.