Consumer Reports has some unfavourable things to say about the pickup vehicles Chevy Silverado and GMC Sierra. 

It claims that dependability and engine problems are becoming more prevalent. 

According to CR's most recent survey of all 2021 cars, these trucks are tied for the position of most likely to experience serious engine issues.

What are the “engine and reliability issues?” Because the two pickups are "the same trucks sold under different labels," according to CR, they are connected. 

Additionally, 4% of Silverado and Sierra customers reported having significant engine difficulties in the past.

These included cylinder head problems and replacing the whole engines.

These included valvetrain difficulties, failures of the head gasket, problems with the supercharger or turbocharger, and timing chain or timing belt troubles.

The Silverado and Sierra both scored one out of a potential five points for dependability, which is the lowest possible rating. 

Ownership over the last 12 months is covered by the survey. 

Because they are all relatively new automobiles, CR observes that "it doesn't take a high percentage to stand out. 

After all, the first few years of a car's life are supposed to be trouble-free.

These problems ought to have been resolved by the refresh that was published this year. 

Additionally, GM performed a pre-refresh with the introduction of the 2022 Silverado 1500 Limited and 2022 GMC Sierra 1500 Limited.