03 astro van stop at red light runs rough put in neutral quits running rough?
new fuel filter put it in shop bad injector fixed now it does as above did it before i got that fixed check engine light off now but now bad mileage it only runs rough under a load in gear once you take it out of gear it like disengages something nothing showing up on computer scan any one out there have any idea?
wouldn't idler sensor and spark plugs show on diagnosis scan?