20 Most Recent 2008 Chevrolet Silverado 1500 - Page 4 Questions & Answers

It is a evaporative emissions code. (evap system catches stores and eventually has the engine burn fuel vapor preassure from tank) It relates specificly to the vapor preassure sensor mounted on the evap canister. There is either a open or short in the wiring to or the sensor itself, causing inaccurate readings, and thus throwing the code. Unless youve been in an accident, it is probably the Preassure sensor.the canister is mounted directly above the rear dif

if you have the problem fixed and cant get the code to clear theres one way to reset all however you will have to reset the clock and radio and its not usaully recomended by the dealer to do so however by just disconnecting both possitive and negative termanels from the battery for a few seconds deletes its memory , however if you havent fixed the problem that it had then it will reappear back again. NOTE Warning be very carefull in removing the terminals do not cross or touch them to any thing conductive this could harm the computer in the vehicle or you or anyone around you.

P0304 Cylinder 4 Misfire Detected, hope it can help you!____________FGTech Galletto 2

gm had and has a lot of door lock actuator failures replace the lock actuator it will be fine

Whenever this warning or any other stays on in the dash it is indicating that the systems control module has detected a fault, it then disables the system as long as the light is on. You must now have the dealer hook up a special electronic diagnostic tool and "scan" the system for the fault code that is stored for the problem(s)