GM TPMS: The Setup And Relearn Procedures
Each sensor has its own unique ID number. If a new sensor is fitted, the BCM must be reprogrammed with its unique ID and its position on the vehicle.
Servicing GM Autoride Rear Air Suspension
The GM full-sized SUVs (Tahoe, Escalade and Avalanche) are the choice of soccer moms, diplomats and celebrities. What made these vehicles so popular was how the vehicles handle suburban and city roads. The key to this is the GM Autoride rear air suspension. Autoride comes standard on the GMC Yukon Denali and Yukon XL Denali. The product is also standard on the Cadillac Escalade, Escalade EXT and Escalade ESV on which it is known as Road Sensing Suspension. GM also offers Autoride as an option for the Chevrolet Suburban, Tahoe and Avalanche 1500, and an option for the GMC Yukon XL 1500.
Air Ride: Compressor Diagnostics
On most modern vehicles, the compressor and air ride control unit are very intelligent components. Most communicate with the Body Control Module (BCM) on a high-speed serial data bus. These systems have malfunction indicator lights on the dash and require the use of a scan tool to diagnose the system.
Is A New Refrigerant Going To Replace R-134a?
Yes, but the question is when? The new refrigerant is HFO-1234yf. Its cooling performance is very close to R-134a (the refrigerant that is currently used in all new cars and trucks), but it has a much lower Global Warming Potential Rating (only 4 versus 1430 for R-134a), making HFO-1234yf a much better refrigerant in terms of its potential impact on climate change.
Brembo Chosen For 2014 Chevrolet Corvette
Brembo has announced it is the brake of choice for the all-new 2014 Chevrolet Corvette, making its world debut this week at the North American International Auto Show. Brembo will be providing calipers and discs and assembling those components into full corners at its newly expanded Homer, Mich., operations.
VIEWPOINT: GM Creates New Recipe for Brake Rotors
Over the past three months, there has been a buzz about a new type of rotor from GM. GM’s team of brake experts and suppliers put a batch of rotors on a lot of Buick and Cadillac models in 2008 to test out if they had truly changed how rotors perform. They succeeded.
Suspension & Alignment Specs: Greatest Hits!
The most difficult issue with some alignments is knowing what you are getting into before you start or your shop even quotes the job. For almost two years, Hunter Engineering has been sponsoring BRAKE & FRONT END’s Suspension & Alignment Specs where Editor Andrew Markel examines a common vehicle platform to figure out what are the service issues and how to make the adjustments.
Tech Spec: Tackling Old Timers – Salvaging Pre-War Era Engines
It’s often surprising to some people that parts for these cars are still available. For other engine specialists, it’s sometimes more surprising when they aren’t.
Alignment & Suspension Specs: GM Lambda Full-Sized SUVs
Lambda is General Motors’ full-size crossover SUV platform that is the foundation for the 2008-2010 Buick Enclave, 2009-2010 Chevrolet Traverse, 2007-2010 Saturn Outlook and GMC Acadia. It has been reported, Cadillac will receive a Lambda vehicle in 2012, which could possibly replace the current Escalade.
Tech Feature: The Variables of Valve Timing
Today’s cylinder deactivation designs are used to reduce the fuel consumption and emissions of an internal combustion engine during light load operation.