Question about Cars & Trucks
Testing diagnostic's associated for the codes is how to find the fix. Assuming as to a fix would only be a guess . Your best bet would be to take it to a qualified repair shop .OR you could look on youtube .
P0101 GM Digital Mass Air Flow Sensor Diagnostics and Troubleshooting by...
P0113 OBD II DTC Engine Code for 2002 Chevy Trailblazer
EVAP Vent Solenoid Code P0446
Posted on Aug 09, 2017
A 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
The service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
code p0446 refers to evaporative emission (EVAP) system-vent control-circuit malfunction===causes --wiring--EVAP canister purge valve--ECM
code p0455 refers to EVAP system-large leak detected===causes --hose connections--intake leak--EVAP canister---EVap canister purge valve
code p0172 refers to system too rich, bank 1===causes intake blocked---EVAP canister purge valve--fuel pressure ---EGR system---injector/s ---ECM
because the EVAP purge valve appears in all codes I would be inclined to change that unit first the run the fault codes again
Posted on Jul 23, 2015
Tips for a great answer:
Jan 28, 2018 | GMC Cars & Trucks
Aug 19, 2016 | Cars & Trucks
Mar 09, 2015 | Cars & Trucks
As the title says: some might have an ses p0446, evap emissions vent circuit low. If you take it to the dealer they want 300-400.00 to fix the problem. GM has a service bulletin on this condition and have the updated part for 180.00, thats suppose to eliminate this issue.
Basically the problem is, the evap purge vent valve gets clogged with dirt, especially if the truck is used in dirty conditions. Well I figured there had to be a cheaper way to cure this problem.
Here it is:
1) find the location of the vent valve; its under the truck, locate the charcoal canister on the front of the gas tank and trace the vent line to the vent valve.
2) Take the bracket loose with a 5/8 wrench.
3) Spin the valve around so the side with the hole is facing you.
4) Take an air compressor and blow the vent valve out.
5) reinstall and clear the code and it's fixed.
Now I know the updated part from gm is supposed to keep the valve from clogging ever again, but why spend the money when all you have to do is blow out the vent valve every 50k-100kmi and save your $$$!
Jul 18, 2014 | 2006 Chevrolet Uplander
Jun 04, 2014 | 2000 BMW 3 Series
Jan 23, 2012 | Cars & Trucks
Jan 25, 2011 | 2001 Pontiac Grand Am SE
Jan 23, 2011 | 1995 GMC Jimmy
32 people viewed this question
Usually answered in minutes!