The 2022 GMC Sierra 1500, the 2022 GMC Acadia and the 2023 GMC Acadia are included in special coverage described in a recent service bulletin published by General Motors.
The Special Coverage, described in bulletin number N242484740, extends the warranty coverage offered for a problem related to the evaporative emissions purge pump of affected GMC Sierra and GMC Acadia units.
In the GMC Sierra and Acadia units affected by this issue, the evaporative emissions purge pump fails. This causes two immediate results, including the setting of a diagnostic trouble code (DTC) and illumination of the Check Engine light on the dash of the affected pickup or crossover.
GM offers a remedy for the issue in the form of a free-of-charge replacement of the faulty emissions purge pump with a new, correctly functional unit. The extended special coverage described in the bulletin lengthens the period during which the free fix is offered to 15 years or 150,000 miles, whichever comes first. Current ownership of the vehicle does not change availability of the remedy.
Owners of affected GMC Sierra and Acadia units who bring their vehicle to the dealership on January 15th, 2025 or later will receive free replacement of the emissions purge pump. If they already paid for replacement of the pump on January 14th or earlier, they can apply for reimbursement of normal costs for the repair.
As a reminder, the 2022 GMC Sierra debuted a mid-cycle refresh for the popular pickup model. Three engines provided motivation, including the turbocharged 2.7L I4 L3B gasoline engine, the naturally aspirated 5.3L V8 L84 gasoline engine, the naturally aspirated 6.2L V8 L87 gasoline engine, and the 3.0L I6 LM2 turbodiesel Duramax. The truck continued to be underpinned by the GM T1 platform under the body panels, with production taking place at the GM Silao plant in Mexico and GM Fort Wayne plant in Indiana.
Meanwhile, the affected GMC Acadia featured two powerplants, the turbocharged 2.0L I4 LSY gasoline engine and the naturally aspirated 3.6L V6 LGX gasoline engine. The GM C1 platform provided structure under the body panels for the crossover, with the GM Spring Hill Plant in Tennessee producing the model.
Comments
So what about 22 Colorado 3.6. Should I plan on having issues. Seems almost every vehicle Gm makes will need to have emissions issues taken care of. And if u keep your car 16 yrs plan on another replacement.
Why a pump for this? What was wrong with using intake manifold vacuum which worked for decades? More over-engineering to fix something that wasn’t broken.
Some engines do not provide enough vacuum, thus requiring the pump. Especially turbocharged engines.
GM continues to hire engineers without any practical experience or knowledge and it shows. If they fire them straight from college they should have to work their first year in a dealership, 6 months in the mechanic shop and 6 months in the body shop before they can design anything.