Check Engine Light With Codes P0440, P0441, P0442, or P0446 on Lexus GX470

Problem Description and Possible Solution

The Check Engine Light may illuminate with various EVAP system fault codes stored. Our technicians tell us this may be caused by a sticking EVAP Purge Vacuum Switching valve. An improved valve is now available to remedy this problem.

Problem Data
RepairPal Verified
Average mileage: 88,600 (70,000–104,000)
4 model years affected: 2003, 2004, 2005, 2008
9 people reported this problem
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shows check engine and does not fire gas