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Tag Archives: GMC

Problems with the Z55 Autoride Suspension in 2000-2014 GM Trucks

Problems with the Z55 Autoride Suspension in 2000-2014 GM Trucks
On many of GM’s larger trucks there was an optional Z55 suspension package available. Autoride is GM's trademark name for their automatic load-leveling suspension and computer controlled shock system. The Autoride system provides for a great ride, but when the system fails it can leave a big hole in your pocketbook. BuyAutoParts.com offers brand-new passive…
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What is Magnetic Ride Control?

What is Magnetic Ride Control?
Magnetic Ride Control, trademarked and frequently referred to as MagneRide, is an electronic suspension system developed by Delphi. It was first available on the 2002 Cadillac Seville STS, and soon made its way to other General Motors vehicles, making its mainstream debut on 2015 and newer Chevy and GMC full-size pickups and SUVs. The system…
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How to Replace Your Autoride Shocks the Right Way

How to Replace Your Autoride Shocks the Right Way
The Autoride suspension available on most full-size 2000-2014 General Motors Full-Size SUVs (RPO Code Z55) is a complex, and often misunderstood system. Autoride was available on most Chevy Tahoe, Chevrolet Suburban, GMC Yukon (including XL and Denali), Cadillac Escalade (including ESV and EXT) and Chevy Avalanche. There are two separate aspects to it; air suspension,…
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How to Identify Your Duramax Diesel Engine Code

How to Identify Your Duramax Diesel Engine Code
For the 2001 model year, General Motors finally replaced the Detroit Diesel 6.2L and 6.5L turbodiesel V8’s they had been using for 20 years, with a new 6.6L V8 developed in-house with Isuzu’s heavy truck division. The new engine was much more powerful than before, being developed from the beginning for turbocharging, and using Bosch…
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Symptoms of a Bad Electric Fuel Pump

Symptoms of a Bad Electric Fuel Pump
Nearly every modern fuel-injected car and truck requires a fuel sending unit. The Fuel Pump for 1999 to 2003 Chevrolet and GMC Pickup Trucks takes the form of an electric pump mounted in the fuel tank, which you might be able to hear as a quiet whirring sound when the key is first turned. This…
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2003-2014 Chevy/GMC Truck & SUV AC Compressor Failure

2003-2014 Chevy/GMC Truck & SUV AC Compressor Failure
If your part of the country is hot even just a few days out of the year, you already know how important the AC system is when you’re driving. Driving around town in stop-and-go traffic won’t give you enough cooling breeze even with the windows down and a long commute in the heat can leave…
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