Available Engine Yukon 
The Truth About Cars
JANUARY 27, 2025
liter L87 motor (found in late-model Chevrolet Silverado 1500, Chevrolet Tahoe, Chevy Suburban, GMC Sierra 1500, GMC Yukon, and Cadillac Escalade) is presently under investigation by the National Highway Traffic Safety Administration (NHTSA) for defects. Hunting for engines myself, I found that there are still L87s are out there.
The Truth About Cars
NOVEMBER 29, 0002
The platform’s main family haulers, the light duty (1500) Chevrolet Tahoe, Suburban, and GMC Yukon made the switch to GMT800 for 2000, while the luxurious Yukon Denali and Cadillac Escalade remained on the GMT400 for one final year. The GMC Yukon was a new model for 1992, as a more road-ready replacement for the K5 Jimmy.
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Green Car Congress
AUGUST 8, 2012
liter engines. The GMC-brand vehicles include Sierra, Yukon and Savana vans. Icom’s JTG II system is now available for more than 400 vehicle platforms, the most of any liquid-injection system in the US market. The JTG liquid-propane injection application is a fully-integrated, mono-fuel or bi-fuel engine system.
Green Car Congress
JULY 18, 2014
Chevrolet and GMC have confirmed a new eight-speed automatic transmission will be standard on 2015 Chevrolet Silverado, GMC Sierra and GMC Yukon Denali/Yukon XL Denali models equipped with the 6.2L The 8L90 also enables numerically lower rear axle ratios, which reduce engine rpm on the highway. EcoTec3 V-8. Click to enlarge.
Green Car Congress
APRIL 5, 2009
L/100km) from its 2.4L, four-cylinder Ecotec direct injection engine. Also available will be a 3.0L DOHC direct injected V-6 engine delivering an estimated 264 horsepower (197 kW). Both engines are mated to six-speed automatic transmissions. City fuel economy is estimated to be 21 mpg US (11.2
Green Car Congress
JUNE 24, 2014
V-8 (355 hp) or the available 6.2L V-8 (420 hp)—the segment’s most powerful engine. More than 675,000 Denali models have been sold since the introduction of the 1999 Yukon Denali. It is standard on all Sierra Denali half-ton models, whether equipped with the standard 5.3L and 5’8” box).
Green Car Congress
AUGUST 21, 2014
The 8L90, the replacement for the venerable 6L80 six-speed in GM’s lineup, is offered as well as standard on 2015 Chevrolet Silverado, GMC Sierra and GMC Yukon Denali/Yukon XL Denali models equipped with the 6.2L gear used with previous six-speed automatic models, engine rpm is reduced by 8% (123 rpm) on the highway at 70 mph.
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