The 2011 Sierra 2500HD, 3500HD, and Denali HD – Gotta Love the Exhaust Brake on Duramax Models

GMC released the specifications today of the new 2011 Sierra Denali HD. What I like about this press release is that it highlights “Competitive Facts” focusing right in on how Sierra matches up with the Dodge Ram and Ford F-Series and Super Duty. In this Press Release, General Motors highlights the towing capability, payload capacity, new independent front suspension system, and my favorite…an exhaust brake on the Duramax diesel. This is what I would like to highlight.

The exhaust brake, which can be turned on or off by the driver, uses the turbocharger and engine compression to generate backpressure…thereby slowing the vehicle without applying the brakes. For those that have tried to keep a steady speed with cruise going down hills with a load, this is a really neat feature. It is integrated with the cruise and accounts for vehicle load and road grade. This will certainly help in prolonging brake life on downhill grades.

2011 GMC
2011 GMC

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Auto Upkeep 4th Edition

Michael Gray

Mike has roots in the automotive service industry. He began diagnosing and fixing cars at a young age in his family’s service station. He has worked in automotive parts supply stores, towing companies, and service facilities. After graduating from St. Cloud State University (MN) with a Bachelor’s degree, he implemented and taught a basic car care program at the high school level. During work on his Master’s degree at Illinois State University (IL), he was a curriculum specialist on a National Science Foundation project where he co-authored ten integrated mathematics, science, and technology books designed for team teaching. Mike has also supervised teachers in Career and Technology Education as a school system administrator.

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