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Quick Answer: 2002 cadillac deville overheating issues?

What causes Northstar engine overheating?

A faulty thermostat might not open, meaning coolant won’t flow. This in turn will cause the engine to overheat. The radiator hose should be hot, which indicates your thermostat is fine. If the radiator hose is not hot, the thermostat might need to be replaced.

What causes a Cadillac DeVille to overheat?

While there are a variety of reasons your Cadillac DeVille is overheating, the most common 3 are a coolant leak (water pump, radiator, hose etc.), the radiator fan, or a failed thermostat.

What year did Cadillac fix the Northstar head gasket problem?

Hello all, I’ve owned quite a few northstars in my day, and I’m getting mixed reviews of when Cadillac changed the bolts and other parts of the engine. 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.

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What year Northstar engines to avoid?

Despite the use of the Northstar engine in various cars that did well on the market, General Motors stopped producing the Northstar engine in 2011. The last cars to ever house the engine was the Cadillac DTS, the Buick Lucerne, and the Cadillac STS, which came off the line for the last time in 2011.

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.

What are the first signs of a blown head gasket?

Bad head gasket symptoms

  • White smoke coming from the tailpipe.
  • BUBBLING IN THE RADIATOR AND COOLANT RESERVOIR.
  • unexplained coolant loss with no leaks.
  • Milky white coloration in the oil.
  • Engine overheating.

Why does my Cadillac keep overheating?

While there are a variety of reasons your Cadillac DTS is overheating, the most common 3 are a coolant leak (water pump, radiator, hose etc.), the radiator fan, or a failed thermostat.

What year Cadillac has head gasket problems?

The popular 2000 and 2002 Cadillac DeVilles are prime casualties, with the engine tending to overheat due to a leaking head gasket.

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.

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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 did they fix the Northstar engine?

The block was redesigned in 2000 in part to address the head gasket issues. There were also minor revisions in 2002 to address a minor problem with the 2000/1 block. As long as you have a 2002+ Northstar and maintain it properly, it’s a very reliable engine.

How much does it cost to fix a blown head gasket on a Cadillac?

Cadillac DeVille Head Gasket Replacement Cost Estimate. The average cost for a Cadillac DeVille head gasket replacement is between $1,716 and $2,112. Labor costs are estimated between $1,517 and $1,914 while parts are priced at $198.

How many miles will a Northstar engine last?

Registered. I think w/ a good maintenance it should last longer than 150 K miles.

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.

What is the best year for Cadillac DeVille?

The 2003 DeVille was most highly rated for its comfort, receiving a 4.6 with lower rating none of which dipped below the 4.0 mark for value for cost, reliability, aesthetics, and technology. This model remained among the best selling in the Cadillac lineup.

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