What does the p0442 code on a GMC Sierra mean?
What does the p0442 code on a GMC Sierra mean? The EVAP system captures all fuel vapor from the fuel tank and sends them to the engine’s intake in order to be ignited in the normal combustion process. When the GMC Sierra’s computer detects that the EVAP systemic not holding any pressure, it will throw the P0442 code. How much does it cost to repair a p0442 GMC? The cost of diagnosing the P0442 GMC code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs...