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The Northstar engine is a family of high-performance 90° V engines produced by General Motors between 1993 and 2011. Regarded as GM's most technically complex engine, the original double overhead cam, four valve per cylinder, aluminum block/aluminum head V8 design was developed by Oldsmobile R&D, [citation needed] but is most associated with Cadillac's Northstar series.
For the 1963 model year, Cadillac redesigned its V8 engine, modernizing the tooling used in the production line while optimizing the engine's design. Although it shared the same layout and architecture with the 1949-vintage engine, the revised engine had shorter connecting rods and was 1 in (25 mm) lower, 4 in (101.6 mm) narrower, and 1.25 in ...
The Cadillac High Technology Engine was a V8 engine produced by the Cadillac division of General Motors from 1982 to 1995.. While the High Technology engine was being developed, due to higher Corporate Average Fuel Economy standards being phased in by the United States government, Cadillac introduced a variant of their traditional V8 engine with the first usage of cylinder deactivation for ...
Introduced for the 1984 model year, the Pontiac Fiero was an instant hit due to its styling and mid-engined layout. However, it eventually garnered a negative reputation due to its poor performance, many reliability issues and a highly publicized recall due to engine fires , in part due to also using GM's Iron Duke engine.
The next full-size front-wheel drive Cadillac sedan was the XTS which went on sale in June 2012 as a 2013 model. A second full-size sedan, the rear-wheel drive CT6, was added to the lineup in 2016. [23] Prior to bankruptcy, GM had considered a rear-drive sedan, powered by the new Ultra V8 engine (replacement for the Northstar), to bow for 2010 ...
The 4T80-E is a hydramatic transmission and was developed for use with V8 front-wheel-drive cars, and at the time exclusively the Cadillac Northstar engine. [3] It was designed with extreme power handling capabilities at the time. The 4T80-E debuted in the Cadillac Allanté in 1993 along with the Northstar Double Overhead Camshaft (DOHC) V8.
The 2.8 liter V6 was permanently removed from production after the 2010 model year due to safety recalls and poor sales. 3.0L V6 was the only engine option available for the 2011 model year. The 3.0L V6 was replaced by a 3.6L V6 engine for the 2012 model year as the only engine option available. [18] [19]
When coolant goes acid, any aluminum engine will have problems eventually. The huge problem here is with the Northstar, that problem is often a pulled head bolt. Looking at reported cases, there seems to be a seven year spike in cases, and a nine-year spike.