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I replaced the vent soldenoid and 3 days later the code came back on. What is the next most likely solution. The car seems to run and drive fine.
How long has your 2001 Oldsmobile Alero had this problem?
1-2 months
Visitor
Nov 29, 2019
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P0446 CHEVROLET Possible Causes Plugged vapor canister Faulty vent solenoid Pinched or blocked EVAP hose Faulty FTP sensor
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Chevy + Olds same for code diagnosis. Diagnostic scan tool required to positively identify failure. Good luck!
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Chevy + Olds same for code diagnosis. Diagnostic scan tool required to positively identify failure. Good luck!