To start a fresh thread about your Yukon @brandypuckett93_186500 , click “maintenance/repairs” upper left, then “new topic”, upper right. Be sure to include make/model/year/engine/transmission configuration.
Related topics
| Topic | Replies | Views | Activity | |
|---|---|---|---|---|
| 2011 2.5L 4Cyl Rav4 P0420 - At a loss for ideas | 42 | 5368 | November 24, 2023 | |
| Understanding P0420 code on 2008 Pontiac G6 GT | 28 | 393 | November 10, 2024 | |
| P0420 Code -- 96' Honda accord -- 253k miles | 36 | 9771 | March 23, 2012 | |
| Po420 code came again! New plugs, coils, and EGR cleaned HELP! | 30 | 15741 | January 11, 2017 | |
| How can I be sure catalytic converter really needed to be replaced? | 18 | 69880 | May 27, 2017 |