starting the other day ive been getting a random shake from the engine that stumbles but doesnt stumble when i get on the gas, i had the hood open just now and whether hot or cold i hear a random tick and with each tick the engine stumbles. i turned off the lights and i dont see any archs from the spark plug wires, when i listen to the tick it sounds like its coming from an injector plug or from the egr plug. it definitely sounds electrical, not like a injector tick, or belt tick. what could it be? and has anyone experienced this?

 

plug wire, injector sticking, exhaust leak, lifter weak or sticking, valve spring bind, thats all i can think of

 

its so strange and random, the tick doesnt sound like internal engine tick or knock, it sounds like when a wire is crossed


aside from the spark plug wire, can any of the smaller electrical wires cause a stumble that bad if they are making contact?

 

there all low voltage, if you have a strong heart run your hand along the wires when its doing it, lol, so its a snapping noise

 

I got shocked the other week but thanks, its somewhat snapping like or when you plug an outlet in the wall and you hear that little arch sound, and as soon as it makes the sound the same time the engine stumbles, how can i test coil packs? I never changed any, and am at 111k now. could be?

 

Sounds like a sparkk plug wire to me. Spark is jumping to ground somewhere along the way. Have you actually pulled them off and checked them?

 

^^^ agree if your getting shocked by your wires they need to be changed. would be a good start. plugs and wires.

 

is there a way to check it other than visually? like with a volt meter or something?