2008 gmc acadia evap system monitor code

#2008 gmc acadia evap system monitor code code#

Check the EVAP charcoal canister – If the solenoid appears to be functioning correctly, check the charcoal canister for signs of blockage or damage.Check for any damage or corrosion to the solenoid, and if necessary, replace it with a new one. Check the EVAP vent solenoid – This is the most common cause of P0446, so it’s a good place to start.Here are the most common things that are done to diagnose the code: It can be tough to diagnose P0446 at home.Ī mechanic has many instruments at his disposal to diagnose what would be causing the P0446 in your GMC Acadia. P0446 Diagnosis- GMC Acadia Purge valves come in many shapes and sizes Leaking gas tank (it can lose pressure from the top without losing gas).Damaged or corroded EVAP system wiring or connections.Clogged or blocked EVAP charcoal canister.Here are the most common problems that will throw the code:

#2008 gmc acadia evap system monitor code code#

There are many things that can cause the P0446 trouble code to trigger in your GMC Acadia. However, P0446 may also cause a gas smell.Īcadia P0446 Trouble Code Causes P0446 can be caused by something as simple as a gas cap. The only other symptoms of P0446 in the GMC Acadia are a slight decrease in fuel economy.

Typically, the only symptom of P0446 will be the check engine light. The P0446 trouble code will appear when the vent control valve is not responding to prompts to open and close from the PCM (Powertrain Control Module). It is usually closed during regular operation, which helps prevent any fuel vapors from escaping into the atmosphere. When the EVAP vent control valve regulates and helps maintain pressure in the GMC Acadia’s fuel tank. The EVAP system captures all fuel vapor from the fuel tank and sends them to the engine’s intake manifold to be ignited in the normal combustion process. The definition encompasses three components: first, the extensive system impacted by the code second, the specific segment and third, the nature of the error. It often appears with other error codes, such as P0420, P0441, or P0440. In layman’s terms, P0446 indicates a problem with the EVAP system vent control valve. P0446: Evaporative Emission Control System → Vent Control Circuit → Malfunction P0446 is a standard OBDII trouble code, applicable to any make or model of vehicle, whether it’s a Acadia or not. P0446: EVAP System – Vent Control Circuit – Malfunction This code corresponds to a specific number obtained when connecting your Acadia to an OBDII scanner.Ī faulty vent control valve most commonly causes P0446. A prevalent issue with the GMC Acadia is the P0446 code.