1967 Chevrolet El Camino Street/stripe on 2040-cars

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GM will recall 3.5 million pickups and SUVs to fix brake issue

WASHINGTON — General Motors Co is recalling 3.46 million U.S. pickup trucks and SUVs to address a vacuum pump issue that could make braking more difficult and increase the risk of a crash. The recall, which covers 2014-2018 model year vehicles, including some Cadillac Escalade, Chevrolet Silverado, Chevrolet Tahoe, GMC Sierra, Chevrolet Suburban and GMC Yukon vehicles, was triggered because the amount of vacuum created by the vacuum pump may decrease over time, GM told the National Highway Traffic Safety Administration (NHTSA) in documents posted Wednesday. NHTSA opened a preliminary investigation into the issue in November 2018, and said it had reports of 9 crashes and two injuries related to the issue. It provided GM in July with additional field reports that prompted the automaker to open an investigation. The company did not immediately say on Wednesday how many injuries or crashes are linked to the issue but said it could impact braking in "rare circumstances." GM said dealers will reprogram the Electronic Brake Control Module with a new calibration that will improve how the system utilizes the hydraulic brake boost assist function when vacuum assist is depleted. GM said the vacuum assist pump, which is lubricated with engine oil that flows into the pump through a filter screen, can in some cases lose effectiveness over time, as debris such as oil sludge can accumulate on the filter screen. GM told NHTSA that prior model years used a different brake assist system design, and vehicles manufactured after 2018 were not equipped with the affected pump design. Recalls Chevrolet GM GMC

How easy is it to rebuild a Chevy small block V8?

Chevrolet's famous small block V8 stands as one of the workhorse engines in American auto history, with its variants going into vehicles from hot rods to pickup trucks. But do you know that you can fully disassemble and completely restore one of these mills in just under four minutes? Well, as long as there's some assistance from time-lapse photography, that is. Hagerty created this short clip showing a dirt-covered small block turning from a frog into a prince. Thankfully, the time-lapse doesn't speed the process up too much, and it's still easy to see how all of the principal parts fit together. With all sorts of sensors and software helping to drive the modern automobile, viewing the internal combustion engine in its purely mechanical form is still fascinating. Related Video:

GM recalling 135,000 SUVs with plastic jacks that can break

General Motors is recalling 135,400 compact crossovers because their emergency jack can break under load. The problem occurs when the jack — which is plastic — isn't positioned correctly as detailed in the owner's manual. This can cause the jack to fracture. If the jack breaks and the vehicle collapses, there's a risk of injury or death, according to an NHTSA recall alert. The recall involves the 2020-22 Buick Encore GX and 2021-22 Chevrolet Trailblazer. A GM test driver discovered the problem when he broke a jack during a durability test on a Trailblazer. GM started investigating in April and found 21 claims of jack failures, including one reported injury. "This jack design may not be sufficiently robust against fractures if improperly or incorrectly positioned on the vehicle frame by the user," a NHTSA safety report said. GM will start notifying vehicle owners July 26. It will provide free replacement jacks that are made of metal.   Featured Gallery 2021 Buick Encore GX View 21 Photos Recalls Buick Chevrolet GM