2001 GMC Savana 3500 with 5.7L engine has code P0446. The canister vent solenoid (EVAP vent valve) and purge solenoid (on the engine intake) were replaced. They weren't defective. What next?

60

Asked by Oct 06, 2014 at 09:49 AM about the 2001 GMC Savana 3500 Passenger Van

Question type: Maintenance & Repair

The canister vent solenoid (EVAP
vent valve) and purge solenoid (on
the engine intake) were replaced.
They weren't defective. I didn't check
that the hoses weren't blocked so I
will so that next. However, could
P0446 also be a defective fuel tank
pressure sensor or carbon canister?
Where are those located?

1 Answer

20,630

Tank pressure sensor should be on the tank itself and the canister is between the tank and filler neck.

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