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Tech Q&A: Trailerlife Magazine

Diesel Tech Q&A: 2011-2016 Duramax Fuel Concerns

JANUARY 2020 2011-2016 Duramax Fuel Concerns I have a 2015 6.6-liter Duramax and have heard about there being a problem with the injection pumps as the mileage nears the 100,000-mile…
Tech Q&A: Trailerlife Magazine

Diesel Tech Q&A: Oil Change Intervals and Analysis

DECEMBER 2019 Oil Change Intervals and Analysis   I have a 2016 Chevy 3500HD Duramax diesel. It has 60,000 miles on it, and I’ve been using Shell Rotella 15W-40 oil since…
Tech Q&A: Trailerlife Magazine

Diesel Tech Q&A: Turbo, Unison Ring and Position Sensor 

NOVEMBER 2019 Duramax Turbocharger, Unison Ring, and Position Sensor   I have a 2007 GMC Duramax diesel 2500HD. Lately, the Check Engine light comes on and off periodically. A visit…
Tech Q&A: Trailerlife Magazine

Diesel Tech Q&A: Oil Temperature and Change Intervals

OCTOBER 2019 Engine-Oil Temperature I really appreciate the Diesel Tech Q&A addition. I have a question about my 2012 Ford F-350 6.7-liter diesel. There is an oil-temperature gauge, but no…
Photo showing the Duramax is like an onion because it has many layers of parts that need to be peeled away to get to the CP4.2 fuel-injection pump
Tech, Tow Vehicles

Diesel Heart Transplant: Duramax CP3 Swap

Replacing the problematic Duramax LML CP4.2 injection pump with its more reliable predecessor, the CP3, can save thousands in repair costs down the road while remaining emissions-legal.  The diesel equivalent…
Tow Vehicles

2014 GMC Sierra 1500

  The fresh new 2014 GMC Sierra 1500 has an interior finished in ebony leather, with steering wheel controls and a redesigned instrument panel and console. Sierra’s cab is engineered…

2011 GMC Yukon XL: Tow big and Go Camping

If you need an SUV that combines seating for up to nine, huge carrying capacity and the ability to tow large trailers, the Yukon may be for you. For 2011…

2011 GMC Denali HD

A variety of twisting mountain roads and broad expanses of rolling multilane highways were recently the test tracks on which we evaluated the brand-new Chevrolet and GMC Heavy-Duty 2500 and…