1999 Cadillac Deville Northstar?

Why are Northstar engines so bad?

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.

What is wrong with Cadillac Northstar?

Many Northstar engines became well known for their tendencies to experience head gasket failure. The most common years of the head gasket issue, by far, are 1997-1999. In 2000, Cadillac lengthened the head bolts, which decreased the chance of having the failure; however, it did not eliminate the issue entirely.

Is a 1999 Cadillac DeVille a good car?

I would highly recommend this car to all my friends and family. It handles very smooth both in the city and on the highway, and gets a very decent MPG’s for a V-8. So, overall, I am completely satisfied with my Cadillac DeVille and will surely by another Cadillac in a few years.

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How reliable is the Cadillac Northstar engine?

You should do a search as this has been discussed many times.. As long as you maintain the engine, particularly the cooling system, the Northstar is very reliable for hundreds of thousands of miles. Personally, I had 110,000 on a 1995 Cadillac Eldorado Touring Coupe and it still drove like brand new.

What year Northstar engines to avoid?

Cadillac DTS, Buic Lucerne and Cadillac STS were the last cars to use a Northstar engine, but generally it is felt that those models from 2002 onwards do not suffer as much with the head gasket issues that plague earlier models. If you have a model prior to this, however, the chances are your Cadillac could be at risk.

What year did Cadillac fix the Northstar head gasket problem?

Some reports say by the 2000 Deville (new body style,) most of the head gasket issues had been fixed. Other places say 2002 the majority was fixed. Yet others say not until 2004 did the majority of the head gasket issues get “solved.”

What causes Northstar head gasket failure?

Unfortunately Northstar engine head gasket failures are not limited to the 96-99 model years. Those years are the worst but form my experience just about all Northstar engines are susceptible to head gaskets failures, most commonly after the engine has been overheated due to some other cooling system failure.

Why do Northstar engines overheat?

The thermostat gauges the temperature of the engine to control the flow of coolant into the cylinder block and radiator. A faulty thermostat might not open, meaning coolant won’t flow. This in turn will cause the engine to overheat.

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How long do Northstar engines last?

Some have blown head gaskets as early as 50k, and some have gone 250k+. Its a question thats somewhat hard to answer. Of course, a motor with a properly repaired HG will keep going. The internal mechanicals will probably last ‘forever’.

What is a 1999 Cadillac DeVille worth?

1999 Cadillac DeVille Value – $249-$1,267 | Edmunds.

What is the best year for Cadillac DeVille?

The 20 Best Cadillac DeVille Models of All-Time

  • 2001 Cadillac DeVille.
  • 2000 Cadillac DeVille.
  • 1999 Cadillac DeVille.
  • 1994 Cadillac DeVille Concours.
  • 2003 Cadillac DeVille.
  • 2005 Cadillac DeVille.
  • 2002 Cadillac DeVille.
  • 1959 Cadillac DeVille.

Are Cadillac Devilles reliable?

DeVille owners have made 199 complaints over 16 model years. It ranks 20th in reliability out of 22 eligible Cadillac models. Our reliability rank is based on our PainRankā„¢ system.

Do all Northstar engines leak oil?

All Northstar 4.6 engines will eventually experience the same seal failures and oil leaks. All of these engines will experience lower crankcase seal leaks, oil pan leaks, valve cover leaks, and rear main seal leaks as well as leaks from sensors and filter adapters. The gaskets simply will not last forever.

What is the best year Cadillac?

Top Cadillac Models of All Time: 13 Best Used Car Finds

  • 1915 Cadillac Type 51. This model introduced both the V8 engine and mass production.
  • 1937 Cadillac Phaeton 5859. The 1937 Phaeton 5859 was not built for the masses.
  • 1949 Cadillac De Ville. This model started a Cadillac trend.
  • 1959 Eldorado Biarritz.
  • 1968 De Ville.
  • 1975 Coupe DeVille.
  • 1982 Eldorado Touring Coupe.
  • 1987 Allante.
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How much is a Northstar engine?

We offer new/remanufactured Northstar engines for the price of $4,995 USD or $6,700 Canadian dollars (Price in effect as of Dec 1/2019).

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