Check Engine Light Due to EVAP System Fault on Toyota Sienna

Problem Description and Possible Solution

The Check Engine Light may illuminate due to an evaporative emission (EVAP) system fault. Our technicians tell us these EVAP system faults can be difficult to diagnose but it is not uncommon to find a failed charcoal canister or a loose or worn gas cap.

Problem Data
RepairPal Verified
Average mileage: 126,040 (2,300–226,000)
9 model years affected: 1998, 1999, 2000, 2001, more2002, 2003, 2007, 2008, 2015
37 people reported this problem
Viewing 1 - 9 of 9 comments
Dealer mechanics tell me it needs a charcoal canister replacement. Says the part costs $1100.00 not including labor. Is this really necessary???
Check engine light went on. Mechanic diagnosed P0440 problem - Evap system. Checked all - hoses, gas caps, solenoid, valve, and pinpointed to carbon canister. Not fixed yet, but will cost $375 parts + $50 labor.
Engine lights came on. Took to the dealer and they said that my charcoal canister is bad. They want over $1,000 to replace it.