2022 4BW P0446 code

[opjocephus]

Almost 5 years old. 18k miles. Thru P0446 Evap canister. Replaced a solenoid. Picked up next day. Drove a few miles thought I better look. Another CEL. Gave me an Optiq to drive home. 2 days later, said fuel pump control module bad. Got it back. No CEL. Under warranty both times some how. 3rd CEL a few days later. Now saying gas tank pressure sensor. Not covered by warranty. $1800. GM reduced my bill to $500. Tank comes out. All day job. Get it back next Tuesday. Fingers crossed.

 

[CT4-Venom]

Good luck with the issues being resolved.

 

[vagabond]

Why wasn’t it covered??? You may want to escalate this to your region’s Cadillac district service manager... Unless you have a tight relationship with your current dealer and that’s worth $500 to you.