Well for some odd reason my truck wants run really rough and im about to lose my mind seems a lil weird but the idle is super rough and motor shakes like crazy .checked pluhs they are ok did test on injectors they all good cleaned both the egr and pvc valves they doin fine checked vaccums they seem good .am planning to check plug wires today and distributor . Is there ne thing im missing or any adcice u can share ? Im a new ranger owner jus boight mine about a month ago needed better gas mileage for work .also very strangely wen u are driving and u arent hetting on the gas it feels like iy is about to shut off or run out of gas but if u mash the pedal down pretty good it smooths out and runs fine?