What year Northstar engines to avoid?

What year Northstar engines to avoid?

Northstar Rear Main Seal Oil Leaks Northstar engines produced through 1999 commonly develop oil leaks at the rear main seal. The rear main seal is located at the back of the block where the the crankshaft exits the block. It’s responsible for preventing oil from leaking at the crankshaft exit.

Is the Cadillac Northstar engine reliable?

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 is wrong with Cadillac Northstar?

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.

How long do Cadillac Northstar engines last?

The Northstar engine is a long-lasting and reliable engine. A properly maintained one can easily last up to 100,000 miles before you need another tuneup related to oil leakage or blown head gaskets. Many people have even seen these engines exceed 200K without any major problems.

Can you BulletProof a Northstar engine?

Our “BulletProof Kit” Contains the best parts to ensure your Northstar repair job is successful and durable. What’s included? With this kit you’re studding both critical areas of the aluminum engine block and you’re also adding the best head gaskets available on the market.

What year did Cadillac fix the Northstar head gasket problem?

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 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.

How much HP can a Northstar engine handle?

A unit in good condition should be able to handle another 100 hp.

How can I make my Northstar engine faster?

Replace the existing air intake filter with an aftermarket model designed to improve the flow of air into the engine. In addition to allowing for more horsepower output, the less restrictive aftermarket filter will improve the vehicles fuel economy. Install an aftermarket exhaust system in place of the factory system.

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

The average cost for a Head Gasket Replacement is between $1,718 and $2,115 but can vary from car to car.

What year did Cadillac fix the Northstar?

2011
GM ceased production of the Northstar in 2011. The final cars to receive it, the Cadillac DTS, Buick Lucerne, and Cadillac STS, rolled off the line in 2011.