P0449 | GMC Acadia Forum
Apr 2, 2022 · I have a 2wd 08 GMC Acadia, we had the check engine light come on about a month and a half ago, the code at that time was po455 I think? We replaced the gas cap, air …
P0449 Code Help: How to Hard Reset Your 2008 Sierra - JustAnswer
2008 Sierra 5.3 P0449 Code: EVAP System Vent Valve Issue Sierra 5.3 often faces persistent P0449 codes and faulty EVAP vent valve solenoids causing emissions errors. P0449 indicates …
GMC Terrain P0449 Code? Expert Troubleshooting Guide
Customer: I have a 2012 gmc terrain it’s showing a p0449 I replaced the whole GMC Terrain Mechanic's Assistant: I'm sorry to hear about the trouble with your 2012 GMC Terrain. Have …
FIXED my P0449 code on 07 Denali - Tahoe Yukon Forum
Dec 8, 2009 · [SOLVED] P0449 Evap vent Selenoid Code and rouge line under Yukon? Skydmark Nov 9, 2025 Engine & Drivetrain Replies 7 Views 274 Dec 1, 2025
Evap Code P0449 | Chevy Tahoe Forum | GMC Yukon Forum
Apr 30, 2019 · I have a 2008 GMC Yukon SLT. I have had the evap solenoid replaced and a new gas cap installed. I am still getting the P0449 code. What else can I check? So tired of check …
GMC Sierra 1500 Evap Canister & Vent Solenoid Locations | Q&A
2008 GMC Sierra 1500 P0449 Evaporative Emission Valve Issue Sierra 1500 often faces EVAP vent valve failures and charcoal canister clogging causing emission errors. Code P0449 …
Q&A: GMC Terrain P0449 Engine Code - JustAnswer
2017 GMC Terrain P0449 Code: EVAP Vent Solenoid Issue Terrain owners often face EVAP system leaks and faulty vent solenoid malfunctions causing check engine lights. Code P0449 …
SOLVED - P0449 still persists after changing out charcoal canister …
Mar 16, 2025 · 2018 Escalade ESV with 131,000 miles I got P0449 a week ago and finally got all of the parts together to change out the related components. I used all ACDelco components to …
P0449 on 2007 Acadia **solved** - GMC Acadia Forum
Sep 3, 2014 · Re: P0449 on 2007 Acadia I've replaced the gas cap, vapor canister purge valve (under the hood), and the canister valve solenoid (on top of gas tank) but still no luck. Anybody …
Dreaded p0449 code | Chevy Tahoe Forum | GMC Yukon Forum
Dec 28, 2017 · I got this code and I changed the evap vent solenoid that's above the spare tire. The gas cap looks fine. Not sure what else to do. Any help would be appreciated. It's a 08 …