skipping

All spark plugs are new so are the wires. There all connected and nothing is loose plugs and wire wise. It doesn't skip bad at idle but apon acceleration it miss fires or skips pretty bad, my girlfriend drives the truck and she said it started kind of out of no where, I put heat in it but it...

All spark plugs are new so are the wires. There all connected and nothing is loose plugs and wire wise. It doesn't skip bad at idle but apon acceleration it miss fires or skips pretty bad, my girlfriend drives the truck and she said it started kind of out of no where, I put heat in it but it...

i have an 89 4cl 5sp ranger it has a skip at idle and in the low rev range then at about 3500 to 4grand it makes a pop sound out of the intake i already changed plugs wires egr and pcv and no change i think timing or burnt valve not sure how to check timing on it i have a light thow but doing a...