Question about 1998 GMC Sonoma
It's the vent valve, and it's connected to the charcoal canister near the rear axle. Might be on top of the tank.
Posted on Jul 31, 2017
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Posted on Jan 02, 2017
The problem is, Autozone doesn't use a scanner. They use a scan tool otherwise known as a code reader. I suggest get another opinion at a shop with an actual scanner. They would be more helpful to you. Don't just throw parts at it.
Posted on Jun 11, 2008
You need a charcoal canister and vent control valve.
You also need the EGR solenoid valve (I think it the brown one).
Valve is located in the valley of the V, towards the transmission side of engine.
Do these 1st and reset light. You may have other issues but you have to start here.
Posted on Sep 16, 2008
all the code is saying is taht it the engine is getting outside air from somewhere in the system most probably you miht have damaged the charcoal canister in the bottom of the car the only way to fix this is to replace the charcoal canister
Posted on Nov 14, 2008
SOURCE: P0440, P0441, P0446
Error code P0446 is an Evaporative Control System vent control
malfunction. DTCs P0441 and P0446 are recorded by the ECM when
evaporative emissions leak from the certain components, or when there
is a malfunction in either the VSV for EVAP, the VSV for
pressure switching valve, or in the vapor pressure sensor itself.
Posted on Jul 02, 2009
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