Why did Cadillac come out with the Northstar engine?
Cadillac began producing new models to use the Northstar engine that he hoped would be direct competition against the luxury cars from BMW, Mercedes, and Lexus. With the production of the Northstar engine, with the consumers wondering if the Northstar engine was good or bad, the numbers did the talking.
Are there any problems with the Northstar 99 STS?
Although I am sorry to hear that your cousin’s husband had a bad experience with his 99 STS, I do not know of any frequent problems to be expected at 50K miles on any of the NS’s. The early years 93/94 did have some opportunity for a half-case seal leak, and a rear main seal leak.
What to do if your Cadillac Northstar breaks?
Forget head gasket sealers; the only lasting option is replacing the gasket and The Devil’s Bolts. The Northstar is a perfect example of an engine that was slightly over-engineered for its own good. It’s finicky, high-maintenance and expensive to repair if anything breaks.
How often do you change the oil on a Cadillac Northstar?
General Motors gave a 7,500- to 10,000-mile oil change interval on this engine, and programmed later oil life monitors to reflect that. Forget them; change it every 5,000 miles, whether it seems necessary or not. The Northstar was a sophisticated, European-style powerplant designed for ‘premium buyers,” engineered like a Swiss watch.
Cadillac began producing new models to use the Northstar engine that he hoped would be direct competition against the luxury cars from BMW, Mercedes, and Lexus. With the production of the Northstar engine, with the consumers wondering if the Northstar engine was good or bad, the numbers did the talking.
Forget head gasket sealers; the only lasting option is replacing the gasket and The Devil’s Bolts. The Northstar is a perfect example of an engine that was slightly over-engineered for its own good. It’s finicky, high-maintenance and expensive to repair if anything breaks.
General Motors gave a 7,500- to 10,000-mile oil change interval on this engine, and programmed later oil life monitors to reflect that. Forget them; change it every 5,000 miles, whether it seems necessary or not. The Northstar was a sophisticated, European-style powerplant designed for ‘premium buyers,” engineered like a Swiss watch.
What causes head gasket to blow on Cadillac Northstar?
That’s nice for assembly purposes, but overheating a TTY-bolt engine — especially one with aluminum heads — stretches the head bolts further than they were meant to go. And being TTY bolts, they don’t shrink back to size when the heads contract. That causes the head to sit loose on the engine, and the head gasket to blow.
When did the Northstar head gasket issue start?
The most common years of the head gasket issues for the Northstar engines are 19097-1999, with the 2000 change of Cadillac lengthening the head bolts severely reducing the prevalence of the issue in Northstar engine cars.
What kind of engine does a Notaris Northstar use?
LD8 Northstar Engine The LD8 engine is a transverse V8 for front-wheel drive cars that were first introduced in 1994 and designed to provide more torque than the L37. used on all torque-tuned Notaris, the compression ratio is 10:1 and is quieter than previous Northstar engines, due to a tuned intake system and better hydraulics.
Why did my Northstar engine overheat while driving?
The failures of the head gasket in the Northstar engines caused the engines to run very hot and overheat while driving, which in turn, made the problem worse and get worse faster than it normally would have.