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Engine Teardown Reveals Internal Failures Behind GM's L87 6.2L V8 Recall
Engine Teardown Reveals Internal Failures Behind GM's L87 6.2L V8 Recall

Yahoo

time3 days ago

  • Automotive
  • Yahoo

Engine Teardown Reveals Internal Failures Behind GM's L87 6.2L V8 Recall

Engine Teardown Reveals Internal Failures Behind GM's L87 6.2L V8 Recall originally appeared on Autoblog. General Motors began 2025 facing a major issue: the National Highway Traffic Safety Administration (NHTSA) launched a formal investigation into the company's widely used 6.2-liter L87 V8 engine. The probe affects 877,710 full-size trucks and SUVs, after multiple reports of engine failures were filed with the agency. The investigation has since led to a large-scale recall and a stop-sale order. In some cases, these engine failures occurred while driving down the highway or just a few miles into vehicle use. Needless to say, they pose serious safety risks. View the 3 images of this gallery on the original article The list of affected vehicles includes the not-rookies-to-recall Chevrolet Silverado 1500, Tahoe, and Suburban; the Cadillac Escalade and Escalade ESV; and the GMC Yukon, Yukon XL, and Sierra 1500, model years 2021 to 2024, all powered by the small-block V8 engine. The American automaker hasn't pinpointed the exact issue with the problematic power plant, only saying that the connecting rod and/or crankshaft components have unspecified manufacturing defects. But what happens inside the L87 V8 engine when it fails? Internet mechanic I Do Cars got its hands on one for an engine teardown, providing a more intimate look at the internals of one of GM's V8 mill that faced a catastrophic failure. The engine in question is said to have been recalled (from a 2022 GMC Yukon Denali), although details of how he got it weren't disclosed. The teardown starts optimistically: the engine can be cranked by hand, indicating no fully seized components. However, the first sign of trouble appears on the pushrods, which exhibit abnormal wear. The lifters, though none have completely collapsed, show signs of debris exposure, with one in particularly poor condition. View the 2 images of this gallery on the original article Removing the oil pan reveals more – a lot more. The internal oil has turned carbon-black, indicating severe overheating and oil breakdown. All eight connecting rods are completely shot, showing extensive damage. The camshaft lobe is also missing a chunk, while the block's front shows scoring, suggesting the crankshaft struck the block. The teardown reveals significant and unusual damage for a relatively young and modern engine, though it aligns with GM's claim that the problem lies with the connecting rods and crankshafts. It's also likely that this engine failed gradually, unlike other reported cases of instant engine failure. As the presenter notes, the owner likely ignored early signs of engine trouble, leading to more catastrophic damage. As part of the recall, GM has already provided a solution to the issue. Affected engines that haven't failed yet will have their oil replaced with thicker 0W-40 oil (replacing the former 0W-20), offering increased protection at operating temperatures. They will also get a new oil filter and oil fill cap that reflects the change. Engines that were shot will be replaced. However, not everyone's happy with GM's band-aid solution to this widespread problem. A lawsuit claims that replacing the engine's oil with higher viscosity would decrease fuel economy. The lawsuit claims that "owners are presented with two bad options: do nothing and risk catastrophic engine failure or get the recall and pay hundreds of dollars more for gasoline." Engine Teardown Reveals Internal Failures Behind GM's L87 6.2L V8 Recall first appeared on Autoblog on May 30, 2025 This story was originally reported by Autoblog on May 30, 2025, where it first appeared.

2026 Chevrolet Suburban: What We Know So Far
2026 Chevrolet Suburban: What We Know So Far

Car and Driver

time4 days ago

  • Automotive
  • Car and Driver

2026 Chevrolet Suburban: What We Know So Far

Overview The 2026 Chevrolet Suburban shares its underpinnings with the Tahoe SUV and the Silverado 1500 pickup truck, both of which are proven workhorses with similar towing and hauling credentials. The Suburban and Tahoe, however, can seat up to nine across its three rows of seats, a feature their pickup-truck sibling can't match. Adults can't fit comfortably in all rows and the Suburban's cargo bay is voluminous even with that those rearmost row of seats in use. The base-level version is extremely de-contented and best left for rental fleets, while the high-end Suburbans border on luxury territory. A gas-fed 5.3-liter V-8 engine is standard, but a higher-output 6.2-liter V-8 is optional; also optional is a fuel-efficient turbodiesel inline-six. What's New for 2026? The Suburban was given a styling refresh just last year, so for 2026 we expect to see no major updates. Pricing and Which One to Buy The price of the 2026 Chevrolet Suburban is expected to start around $65,000 and go up to $84,000 depending on the trim and options. LS $65,000 (est) LT $68,000 (est) RST $73,000 (est) Z71 $75,000 (est) Premier $79,000 (est) High Country $84,000 (est) 0 $25k $50k $75k $100k $125k $150k We'd recommend the RST for its sporty appearance, which includes blacked-out exterior trim and 22-inch wheels. It also features desirable standard goodies such as a Bose stereo, leather first- and second-row seats, heated front seats with memory settings, and a power-operated liftgate. Given the choice of all three engines, we'd choose the diesel inline-six for its fuel efficiency and effortless muscle. This content is imported from Third party. You may be able to find the same content in another format, or you may be able to find more information, at their web site. Engine, Transmission, and Performance A 355-hp 5.3-liter V-8 is the default engine, but for more grunt, a 420-hp 6.2-liter V-8 is optional. A 305-hp diesel 3.0-liter inline-six is also available and is both torquey and fuel-efficient. All three engines are mated to a 10-speed automatic transmission and either rear- or all-wheel drive. The Suburban can also be fitted with adaptive dampers and an adjustable air suspension. The latter allows the big SUV's ride height to be both automatically and manually lowered or raised. This enables improved passenger accessibility, aerodynamics, and ground clearance. The rugged-looking Z71 off-road trim has 20-inch wheels wrapped in all-terrain tires, plus underbody skid plates and a two-speed transfer case that provides traditional four-wheel drive. In our initial test drive of the 2025 Suburban, we found it offers better driving dynamics than you'd expect given its size, and we enjoyed the smooth diesel engine in particular. 0–60-MPH Times We haven't yet tested the 2026 Suburban, but it should offer the same acceleration as previous models. In our testing, a Suburban with the 6.2-liter V-8 got to 60 mph in 6.1 seconds, and a diesel Suburban recorded an 8.4-second time. Towing and Payload Capacity Rear-wheel-drive Suburbans fitted with the 355-hp 5.3-liter V-8 tow the most—8300 pounds—when optioned with the available Max Trailering package. The four-wheel-drive diesel Suburban offers the lowest towing capacity in the lineup at 7800 pounds. Fuel Economy and Real-World MPG The EPA hasn't released any fuel economy information for the 2026 Suburban yet, but the 2025 model earned ratings as high as 21 mpg city, 26 mpg highway, and 23 mpg combined for diesel models, and 15 mpg city, 20 mpg highway, and 17 mpg combined for gasoline versions. Once we test a Suburban on our 75-mph highway route, which is part of our extensive testing regimen, we can evaluate its real-world mpg. We did test a Tahoe—the 'Burban's smaller sibling—fitted with the diesel-six on our highway route and it returned 27 mpg, which confirms its superior efficiency over the gas engines. We wouldn't expect a Suburban with this engine to turn in a significantly worse result, as the EPA rates the Tahoe diesel only one mile per gallon better on the highway. For more information about the Suburban's fuel economy, visit the EPA's website. Interior, Comfort, and Cargo As one of the largest SUVs, the Suburban offers a cavernous interior with plenty of room for both people and cargo. Three rows of seats can fit up to eight riders in most models (versions with the optional front bench seat can hold nine passengers, while models with the optional second-row captain's chairs can fit seven). There's enough legroom for just about anyone to find a comfortable position even in the rearmost row, especially since the second-row seats can slide fore and aft to adjust the passenger space. Behind the third row is a large cargo area that will easily swallow a family's road trip haul. The load floor is flat and low, making loading and unloading easier than in rivals with their higher floors. Entry-level models are predictably plainer than those at the more expensive end of the range, but Chevy still equips them with useful and convenient features such as automatic climate control, several power outlets, easy-to-fold second- and third-row seats, and more. The High Country model is the most luxurious; it includes posh wood trim and perforated leather upholstery and is offered with unique interior color schemes. View Interior Photos Elana Scherr | Car and Driver Infotainment and Connectivity Fans of big screens will find two of them on the dashboard of every Suburban. An 11.0-inch digital instrument cluster is tucked away in front of the driver, and a larger 17.7-inch infotainment display takes center stage. The main display is angled slightly toward the driver to help aid access to the system's functions. Apple CarPlay and Android Auto are standard, as is a Wi-Fi hot spot, and a wireless smartphone charging pad. A Bose stereo and a rear-seat entertainment system are both optional features. Safety and Driver-Assistance Features The Suburban features a suite of standard driver-assistance technologies . GM's Super Cruise hands-free driving feature is also available, but only on LT, RST, Premier, and High Country models. For more information about its crash-test results, visit the National Highway Traffic Safety Administration (NHTSA) and Insurance Institute for Highway Safety (IIHS) websites. Key safety features include: Standard automated emergency braking with pedestrian and cyclist detection Standard lane-departure warning and lane-keeping assist Available adaptive cruise control with a hands-free driving feature Warranty and Maintenance Coverage Chevy provides a competitive limited and powertrain warranty as well as more complimentary maintenance than all of its rivals except for Toyota. Limited warranty covers three years or 36,000 miles Powertrain warranty covers five years or 60,000 miles Complimentary maintenance is covered for the first visit Specifications Specifications 2025 Chevrolet Suburban Vehicle Type: front-engine, rear- or rear/4-wheel-drive, 7–9-passenger wagon PRICE Base: LS, $63,495; LT, $66,695; RST, $71,495; Z71, $73,495; Premier, $78,095; High Country, $83,195 ENGINES turbocharged and intercooled DOHC 24-valve 3.0-liter diesel inline-6; 305 hp, 495 lb-ft; pushrod 16-valve 5.3-liter V-8, 355 hp, 383 lb-ft; pushrod 16-valve 6.2-liter V-8, 420 hp, 460 lb-ft TRANSMISSION 10-speed automatic DIMENSIONS Wheelbase: 134.1 in Length: 225.7 in Width: 81.1 in Height: 75.7 in Passenger Volume, F/M/R: 71/61/48 ft3 Cargo Volume, Behind F/M/R: 145/94/42 ft3 Curb Weight (C/D est): 5700–6100 lb PERFORMANCE (C/D EST) 60 mph: 6.1–8.4 sec 100 mph: 15.7–24.2 sec 1/4-Mile: 14.5–16.5 sec Top Speed: 113 mph EPA FUEL ECONOMY (C/D EST) Combined/City/Highway: 16–22/14–20/18–26 mpg More Features and Specs

Chevy's Infotainment System Is Excellent—Especially With CarPlay: Review
Chevy's Infotainment System Is Excellent—Especially With CarPlay: Review

Motor 1

time4 days ago

  • Automotive
  • Motor 1

Chevy's Infotainment System Is Excellent—Especially With CarPlay: Review

At the risk of beating a dead horse, Chevrolet deciding to ditch Apple CarPlay and Android Auto compatibility in its electric cars has to be one of the most short-sighted moves in automotive history. As CarPlay grows to become even more expansive, buyers of Chevy's excellent new EVs are left with no choice but to fiddle with the brand's native interface. It should be said: Chevy's infotainment system is excellent, CarPlay or not. The screens are big and beautiful, the graphics are crisp, and there are a ton of features. Chevy even baked some genuinely useful tools into the Google Maps interface for charging. But the system only gets better with smartphone mirroring. Quick Specs 2025 Chevrolet Suburban Touchscreen 17.7 Inches Instrument Cluster 11.0 Inches Apple CarPlay / Android Auto Wireless Subscription Costs $10-$65 / Month Photo by: Jeff Perez / Motor1 The screens look lovely regardless of what's projected onto them. In this Suburban , a massive 17.7-inch landscape display occupies the center of the dash while an 11.0-inch digital instrument cluster sits just ahead of the driver. These are the two biggest screens Chevy offers in any of its cars, with smaller 11.0- and 13.4-inch screens also available throughout its lineup. Chevy's native graphics are modern and crisp, with a blue-tinged background that makes it all feel a bit more futuristic. Options on the home screen are arranged neatly and require only one or two taps to get you where you need to go, which means you can quickly parse things while on the move. No need to go digging. Amazon Alexa and Google Assistant voice control systems both come standard, and they work about as well as any modern in-car voice command system, which is to say, hit or miss. Google Maps is the native navigation, and it's no different here than it is on your smartphone—give or take a few tweaks to fit the larger screen. It's completely seamless. Photo by: Jeff Perez / Motor1 Pros: Looks Beautiful, Easy To Use, Seamless Maps, Many Useful Features Of course, buyers who still want their phone projected onto the screen can do that. That's the beauty of choice. With Apple CarPlay or Android Auto activated, the smartphone projection looks absolutely pristine atop Chevy's massive center stack. Maybe second only to BMW, Chevy accepts the smartphone interface like no other. And it takes up the same amount of screen real estate as Chevy's native system, too. Blissfully, the Suburban still offers a row of tactile buttons and dials for fan speed, temperature, and window defrosting just below the middle air vents. They're so easy to use. But, there's also a row of touch controls at the base of the screen that offers many of those same functions, with added seat heating and ventilation, and fan adjustments. It's the best of both worlds. Photo by: Jeff Perez / Motor1 Photo by: Jeff Perez / Motor1 Any problems are trivial. When you're using Apple CarPlay, there's no home button, which means you have to scroll to the second screen and hit the "Chevrolet" app to get back to Chevy's UI. Not a huge deal. And when you're listening to a podcast over Bluetooth, there's no clear "15-second rewind" or "30-second fast forward" option. But, the on-screen arrows offer the same functions nonetheless. And then there are the costs. Chevrolet just recently updated its OnStar pricing structure for 2025, with the most basic "Connect" plan starting at $10 a month for native apps like audiobooks, music, news, and podcasts. The "Connect Plus" plan adds a Wi-Fi hotspot and in-vehicle games for $20 a month, while the most expensive "OnStar One Super Cruise" adds things like roadside assistance, stolen vehicle assistance, and Super Cruise for $65 a month. Super Cruise is otherwise a $25 per month extra on those other packages. Photo by: Jeff Perez / Motor1 Cons: Expensive Subscription Costs Beyond some very minor complaints and pricey subscription costs, Chevy's infotainment system is probably second only to Toyota's interface in 2025. It's clean, it's quick, it's easy to use, and it has most everything you want (assuming you're willing to pony up). Yes, you still need Apple CarPlay and Android Auto if you want the same simplicity of a smartphone. Or, you definitely still want it at a minimum. But Chevy has done an excellent job of offering users everything they could ask for without it feeling too much of a downgrade from what's in their pockets. More Infotainment Reviews The Nissan Rogue's Base Infotainment Proves Simpler Is Better: Review Volvo's Infotainment System Looks Good, But Falls Short: Review Get the best news, reviews, columns, and more delivered straight to your inbox, daily. back Sign up For more information, read our Privacy Policy and Terms of Use . Share this Story Facebook X LinkedIn Flipboard Reddit WhatsApp E-Mail Got a tip for us? Email: tips@ Join the conversation ( )

Quiet on the southern front: A border agent's slow day shows Trump effect
Quiet on the southern front: A border agent's slow day shows Trump effect

USA Today

time25-05-2025

  • Politics
  • USA Today

Quiet on the southern front: A border agent's slow day shows Trump effect

Quiet on the southern front: A border agent's slow day shows Trump effect Illegal crossings at the southern border have declined by over 90% from a year ago. Show Caption Hide Caption How has Trump's border fared during his first 100 days? What we know. President Donald Trump promised 'mass deportations' during his campaign. Here's what we know about them 100 days in. SUNLAND PARK, N.M. ‒ Border Patrol agent Claudio Herrera steered his green-and-white Suburban up a rocky hillside, to an outcropping where migrant smugglers once lurked. It was 6:15 a.m. on a weekday in mid-May – a peak hour in what should have been peak season for illegal migration in southern New Mexico. But there was no sign of smugglers or migrants at the U.S.-Mexico border that morning. Only two U.S. soldiers in a pick-up watching a downslope into Mexico littered with water bottles and clothes, the debris of a massive wave of migration that has all but dried up. "We were averaging 2,700 individuals a day," Herrera told USA TODAY, recalling the height of apprehensions in 2023. "Right now, just to give you a comparison, we're averaging between 60 and 70 individuals." President Donald Trump's crackdown on illegal migration is evident everywhere at the U.S.-Mexico border, especially in Border Patrol's now-quiet El Paso Sector, which stretches 264 miles from West Texas through New Mexico. This used to be one of the busiest sections. Two years ago, at this hour, Herrera's radio would have crackled with intel as agents tracked migrants through the desert around Sunland Park, New Mexico, just outside El Paso, Texas. Groups were scaling the 30-foot steel border fence with rope ladders, or crawling through gaps sawed into the old steel mesh fencing, hundreds of people a day in a 20-mile stretch starting at the rugged mountainside of Mt. Cristo Rey. But Trump's mix of policies – deploying the military to the border, restricting asylum, publicizing deportations – have all made for powerful messaging. So far, it's held migration at bay. Herrera stopped to survey the landscape, beside an old obelisk monument marking the borderline. There are now 6,800 soldiers working alongside 17,000 Border Patrol agents at the southern border. In El Paso Sector, the soldiers staff half a dozen Stryker vehicles, whose high-tech optics let them surveil the desert terrain for miles. Even the land itself now belongs to the military, after Trump declared nearly 110,000 acres of New Mexico borderland a "national defense area." Sharp decline in border crossings At 6:49 a.m., a voice came through Herrera's radio – a possible migrant sighting at the base of the mountain. He jumped back into the driver's seat. Seconds later, the voice identified the suspect as a local resident. Agents aren't processing asylum-seekers anymore, Herrera said, not since President Joe Biden restricted access to asylum at the border in June 2024. That's when crossings at the border first began their sharp decline, a trend that accelerated after Trump took office. Since then, illegal crossings have plunged to the lowest level since record-keeping began. U.S. Border Patrol reported roughly 8,400 migrant encounters at the U.S.-Mexico border in April, the latest month for which data is available. A year ago, agents were apprehending roughly that many people every two days, and encounters nearly hit 129,000 in April 2024. In the El Paso Sector, where Herrera patrols, migrant encounters fell 93% in April to under 2,000 from more than 30,000 a year ago, he said. "We used to see groups of, you know, 20, 30 individuals just on the other side of the border," Herrera said. All quiet on the southern front Back then, he said, smugglers standing on high ground would "just watch whatever Border Patrol was doing and where our vehicles were deployed, so they can push migrants illegally into the country." Now, some agents are complaining of boredom, Herrera said jokingly – though the quiet radio made his point. He drove the borderline west, hugging the 30-foot fence where it begins at the base of the mountain. A black hen strutted in Mexico south of the steel bollards, in a neighborhood of Ciudad Juárez where some houses are built of plywood and palettes. An elaborate altar to the skeletal icon Santa Muerte faced north. Looking west, the fence climbed a mesa where soldiers in a Stryker vehicle surveilled the border. In good conditions, the vehicle's thermal optics are powerful enough to spot a mouse a mile away. Since Trump took office on Jan. 20, the military deployment at the southern border has cost some $525 million, according to The New York Times. Herrera pulled the Suburban to a stop west of the Santa Teresa port of entry, in a stretch of desert far from the urban footprint of Sunland Park. Soldiers had posted red-and-white warning signs roughly the size of a sheet of notebook paper, in English and Spanish, affixed to metal posts in the sand about 30 yards north of the border fence. "This Department of Defense property has been declared a restricted area," the signs read in tiny print. Migrants who cross illegally here can be charged with trespassing on what is now a military installation. On a stretch of borderline nearby, a rebar-and-rope ladder hung atop the 30-foot steel barrier, unbothered. Too soon to know if it will hold Smugglers and migrants often respond to significant policy shifts by adopting a wait-and-see approach. Migrant traffic dropped early in the first Trump administration, too, though not as dramatically, before climbing again. "It is definitely very, very early to know what's going to happen," Herrera said. "But the fact is," he said, "we need to always have this perfect balance between infrastructure, technology and personnel to address the different challenges we have with illegal immigration and any other illegal activity happening at the border." His radio buzzed again after 9 a.m. There were signs that a group of eight migrants had entered illegally the night before, during a dust storm that swept through El Paso and southern New Mexico. Thirteen hours later, they still hadn't been apprehended. "We're seeing a significant drop in comparison to the previous fiscal year in encounters," Herrera said. "But we haven't gained 100% control of the operations here for the El Paso Sector." Herrera drove past a stretch of southern New Mexico where the 30-foot steel bollards give way to 18-foot steel mesh. The cutouts made the shorter fence look like a patchwork quilt. Criminal organizations have been hurt by the border crackdown, he said. Migration "has become a multi-billion-dollar enterprise for the cartels," he said. "Their inability to cross individuals illegally, it's affecting them every single day." South of the fence, a man with a ski mask and hoodie quietly collected steel mesh squares, the ones that had been sawed out of the wall and discarded in the sand. Herrera said Border Patrol has a contractor whose job it is to repair the border fence all day. Meanwhile, the man loaded the squares onto the seat of his bike. He'd sell them for scrap, he said. Lauren Villagran can be reached at lvillagran@

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