miss fire
Take it to a shop and let a real shop diagnose the code for ya. If you went to AZ and had the code pulled it dosent help you get the diagnostic stratagy to fix it. You can get a manual on the truck and see if there is a diagnostic tree in there to help you fix it.
A faulty Camshaft Position Sensor can cause this fault. Has any work been done on the truck lately? What, if any, mods do you have on the truck. Which engine is it? 4.2 V6 or one of the V8s?


