Took the truck to auto parts store when check engine light came on. They put it on the computer and it said the #1 & 2 cylinders were misfiring so we replaced all spark plugs and wires. The check engine light was off for a couple of days then came back on. Took it back and they had me buy fuel injector cleaner and reset the check engine light. About 30 miles later it came back on. They said it still says misfire for #1 & 2 cylinders and to change the fuel injectors. I wanted to be sure 1) that it is possible to be the fuel injectors and 2) would it be better to just change all the fuel injectors. The truck shakes when at cruising speeds but usually goes away when excelerating. The EGR valve, mass air flow sensor, vaccuum sensor, and fuel filter have all been replaced per the auto parts store recommendation to fix the problem since the truck was putting out lots of codes according to them. Thanks for any insight you can give.
Dec 21, 2009 at 10:53 PM