I have a 2007 Tahoe. I have replaced the vent solenoid as well as purge valve. Did fine for a month and check engine light is back on with the same code P0446. Also hard to start after filling up. Any suggestions on what could be the problem?
Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.