Check Engine Light Due to EVAP System Fault on Toyota Sienna

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.

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Average mileage: 128,863 (2,300–226,000)
9 model years affected: 1998, 1999, 2000, 2001, more2002, 2003, 2007, 2008, 2015
27 people reported this problem
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Viewing 1 - 10 of 10 problem details
2001 Toyota Sienna 200,000 mi,
replaced canister and both VSVs under the hood. Still have the error
2007 Toyota Sienna 98,000 mi,
Dealer mechanics tell me it needs a charcoal canister replacement. Says the part costs $1100.00 not including labor. Is this really necessary???
2002 Toyota Sienna 118,000 mi,
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.
2003 Toyota Sienna 102,750 mi,
Check engine light due to EVAP system. p0446
2003 Toyota Sienna 226,000 mi,
Had to take it in and it cost me about 300.00 to repair.
2007 Toyota Sienna 58,000 mi,
Dealer says new charcole filter for 610 parts + labor. Seems very high for a filer
1999 Toyota Sienna 185,000 mi,
engine light and code.changed charcoal filter and switch on fuel rail.fixed the problem.
1999 Toyota Sienna 171,200 mi,
This is in kilometers not miles. The error was coming up so I just cleared it with my obd2 reader. It comes up once in awhile but I just clear it. No real issues so far.
2015 Toyota Sienna 2,300 mi,
Dealer to replace canister, I suggested new gas cap as well. Cheap fix
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.