P0446 Pontiac - Evaporative Emission Vent System Performance
Repair Importance Level:
Repair Difficulty Level:
- Plugged vapor canister
- Faulty vent solenoid
- Pinched or blocked EVAP hose
- Faulty FTP sensor
Dirt and dust intrusion into the EVAP canister vent hose assembly, resulting in restricted air flow, may cause this condition.
When is the code detected?
The Powertrain Control Module (PCM) sets the P0446 code if the vacuum decay rate is greater than a predetermined value.
- Engine Light ON (or Service Engine Soon Warning Light)
- Possible a noticeable fuel odor caused by the release of fuel vapors
P0446 Pontiac Description
The Powertrain Control Module (PCM) monitors the performance of the Evaporative Emission (EVAP) system by applying a predetermined level of vacuum to the EVAP system then monitors the vacuum decay rate.
Need more help?
Do you need more help with the P0446 Pontiac code? ask a question to our users or search the top hand picked automotive forums for more information
PONTIAC Technical Service Bulletins for P0446 code
2009 PONTIAC G5 Engine And Engine Cooling:engine Details
2009 PONTIAC G5 Fuel System, Other:storage:tank Assembly:pressure Relief Devices Details
2009 PONTIAC G5 Electrical System Details
2010 PONTIAC G5 Engine And Engine Cooling:engine Details
2010 PONTIAC G5 Fuel System, Other:storage:tank Assembly:pressure Relief Devices Details
Repair Shops Around Your Area
Need parts to fix this code? Search hundreds of stores at the same time and compare prices
Help us improve Engine-Codes.com. Leave a comment below or tell us if the information above help you fix the code. What are symptoms is your vehicle for the P0446 Pontiac code? Have you replaced any parts?
Any information is appreciated. Thanks