BobTinaDenali
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- Dec 5, 2022
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2020 Denali 1500. 0449 code popped up, I replaced the solenoid at throttle body, popped up again after around 100 miles. I replaced the lower vent valve solenoid. After driving for a little while g the he light came on again. I replaced the canister this time and the light came back on after about 10 miles. I’m at a complete loss, anyone have an idea what’s causing this. I took the truck to a repair shop who checked it with one of those Snap-On computers testers. My next option is to take it to a dealer but I’d like to make sure it’s not something I can fix first.
Any suggestion will be appreciated.
Any suggestion will be appreciated.
