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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.
A cold start can be difficult for an engine due to higher viscosity of oil and fuel in cold temperatures. Generally speaking, diesel engines have more difficulty starting at low outside temperatures than gasoline engines, and electric engines have the most problems.
The Standard lists 12 climatic regions and the limits range from −3 °C to 15 °C. Ordinarily, Australian automotive diesel fuels on average have a cold filter plugging point value that is about 2 °C below the cloud point. The Standard also lists particular locations where fuel problems may possibly occur because of cold weather conditions. [10]
But the main problem that soon damaged its reputation was poor quality control at the new, purpose-built Linwood plant, and an underdeveloped design that was rushed into production within three years of planning. Quality issues included the frequent failure of gearboxes and water pumps, poor engine cooling that often resulted in motors ...
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.
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 year did not start well for the Northstar LMP02 at Sebring. One car suffered a failed electronics system towards the end of the race, while the sole remaining car came home a disappointing 31st. Moving to Le Mans, the Cadillac showed its speed in qualifying once again by taking the eighth and tenth fastest qualifying times, beating out both ...
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 ...