P0446Medium Priority
Evaporative Emission Control System Vent Control Circuit Malfunction
Category: Powertrain• Auxiliary Emission Controls
27 articles · 3 makes affected
Owner Data Insights
Frequently Appears With P0446
These codes often appear together in owner reports. Check these if you see P0446.
Based on analysis of 4 owner reports where multiple codes appeared together.
Owner Statistics for P0446
Based on 26 real owner discussions • 5 confirmed solutions
19%
Success Rate
26
Data Sources
About This Data
Statistics are aggregated from real owner discussions on Reddit, automotive forums, and YouTube comments. All data is anonymized and represents actual repair experiences reported by vehicle owners.
P0446 Issues by Vehicle
FORD
2010 Expedition
2010 Ford Expedition Slipping: How to Diagnose and Fix It
100 sources
2020 Mustang
2020 Ford Mustang Intake Manifold Leak? Here's How to Fix It
177 sources
2020 Mustang
Why Your 2020 Ford Mustang Keeps Blowing Fuses
112 sources
2020 Mustang
How to Fix a 2020 Ford Mustang Intake Manifold Coolant Leak
245 sources
2010 Expedition
2010 Ford Expedition Hard Start? Here's How to Fix It
100 sources
2025 Mustang
2025 Ford Mustang Intake Manifold Leak? Here's How to Fix It
108 sources
2010 Mustang
2010 Ford Mustang Stalling? How to Fix Throttle Body Issues
59 sources
2020 Mustang
Stop the Clicking: How to Diagnose and Fix Mustang Relay Problems
144 sources
2010 Mustang
My 2010 Ford Mustang Misfires After Clutch Replacement - How to Fix It
84 sources
2020 Mustang
2020 Ford Mustang Fuse Keeps Blowing: What To Do
230 sources
2020 Mustang
Fixing Cam Phaser Problems in Your 2020 Ford Mustang
1.1K sources
2020 Mustang
Why Your 2020 Mustang Has a Tapping Noise and Poor Handling
1.1K sources
2010 Mustang
Why Your 2010 Mustang Cranks But Won't Start (MAF Sensor Guide)
134 sources
2010 Expedition
Why Your 2010 Expedition Gets Bad Gas Mileage (And How to Fix It)
100 sources
2010 Expedition
Why Your 2010 Ford Expedition Hesitates When Accelerating
100 sources
2010 Mustang
How to Fix Your 2010 Mustang's Throttle Body Hesitation and Bucking
147 sources
2020 Mustang
Fixing 2020 Mustang Oil Consumption and Intake Manifold Upgrades
672 sources
TOYOTA
2010 Camry
Grinding Noise in Your 2010 Toyota Camry? How to Fix It
100 sources
2010 Camry
2010 Toyota Camry: Check Engine Light Guide
100 sources
2010 Camry
How to Diagnose and Fix a Misfire in Your 2010 Toyota Camry
100 sources
2010 Camry
Why Your 2010 Camry ABS Light Is On and How to Fix It
100 sources
2010 Camry
Why Your 2010 Camry Cranks Slow and How to Fix It Fast
100 sources
2010 Camry
How to Diagnose and Fix a Knocking Noise in Your 2010 Camry
100 sources
CHEVROLET
2015 Silverado
Why Your 2015 Silverado Gas Mileage is Bad (Fuel Pump Fix)
100 sources
2015 Silverado
Stopping the 2015 Silverado Transmission Shudder for Good
89 sources
2014 Silverado
Why Your 2014 Silverado is Misfiring (It's Probably the Grounds)
91 sources
2020 Silverado
How to Diagnose and Fix Your 2020 Silverado's Fuel Delivery Problems
93 sources