A '93 Northstar had green coolant from the factory. DexCool was not introduced until the '96 model year. I recommend you keep running DexCool in your car.
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What happened to the Cadillac Northstar engine?
Jan 24, 2016 · Personally, I would change coolant - ANY coolant - every 3 years, religiously. The car runs DEX-COOL, the truck runs Ford Coolant - a similar long life coolant, and no problems. Cadillac allows a coolant/water ratio of between 50/50 and 70/30. I usually run near 60/40. Premium Member.
What kind of coolant does a GM Northstar take?
Dec 18, 2010 ·
How do you fix a Northstar engine that overheats?
What problems did the GM Northstar have in the 1990s?
Jun 03, 2008 · A '93 Northstar had green coolant from the factory. DexCool was not introduced until the '96 model year. I recommend you keep running DexCool in your car. If you switch to green, you will need to change it every two years. Once green coolant is introduced into the cooling system, it will plate the internals with silicates.
What antifreeze does Cadillac use?
5 Answers. Your Cadillac probably has the red Dex-Cool in it. Top it off with a 50/50 mix of red Dex-Cool and distilled water or buy some that is premixed 50/50. Green can cause issues such as cooling system deposits and break down of the antifreeze.
How do I keep my Northstar engine cool?
8:1610:28Cadillac | Prevent Northstar engine from Overheating | What Mechanics ...YouTubeStart of suggested clipEnd of suggested clipGiving you a correct reading on how hot your engine's going and it won't allow the fan to kick on toMoreGiving you a correct reading on how hot your engine's going and it won't allow the fan to kick on to cool off the water. When you're idling replace the fan bells that's kind of obvious.
What kind of antifreeze does a 1998 Cadillac DeVille take?
Peak 1 Gallon Orange 50/50 Coolant/Antifreeze.
What kind of coolant does a 97 Cadillac DeVille take?
Peak 1 Gallon Yellow 50/50 Coolant/Antifreeze.
What year Northstar engines to avoid?
Which Cadillac Northstar models suffer most with head gasket leaks? 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.
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 kind of antifreeze does a 99 Cadillac Deville take?
Peak 1 Gallon Yellow 50/50 Coolant/Antifreeze.
What kind of coolant does a Cadillac Deville take?
Prestone - DEX-COOL 50/50 Antifreeze / Coolant - Gallon (Part No. AF850)
What kind of antifreeze does a 2003 Cadillac Deville take?
Notes: Dex-Cool 50/50, Premixed Do Not add water.
How do you put antifreeze in a Cadillac?
How to Add Coolant: Cadillac CTS (2008-2015) Premium 3.6L V6...Find Reservoir - Locate the coolant reservoir and clean it.Check Level - Determine the coolant level.Add Coolant - Determine coolant type and add fluid properly.Replace Cap - Secure the coolant reservoir cap.More items...
What kind of antifreeze does a 2000 Cadillac Deville take?
Peak 1 Gallon Yellow 50/50 Coolant/Antifreeze.
What kind of antifreeze does a 2005 Cadillac Deville take?
Zerex 1 Gallon Yellow 50/50 Coolant/Antifreeze.
What happens if a Northstar V8 is cranked over?
The Northstar V8 is an interference engine, which means if a chain fails or is disconnected when the engine is cranked over, the valves will hit the pistons. That's something you don't want to happen with an expensive engine like this!
Why did the Northstar V-8 leak oil?
In the 1990s, the Northstar V-8 four primary problems: head gasket failure, oil leaks, high oil usage and oil burning.
What is the Northstar V8 engine?
Engine Features. The Northstar V8 has a die-cast aluminum block with a bottom end girdle that splits along the midline of the crankshaft bearings.
What is under the top cover of a Northstar V8?
Under the top cover you'll also find the MAP sensor, intake air temperature sensor and fuel pressure regulator. If the fuel pump relay fails on a Northstar V8, the engine should still run because the fuel pump also can be energized through the oil pressure sending unit.
Why does my Northstar blow a gasket?
Head gasket problems also plagued the Northstar. Burning oil and the resulting buildup of debris in the engine caused it to overheat and blow a gasket. In other instances, the heads may have been serviced or replaced and then re-installed with a new head gasket using the original head bolts.
What is the purpose of the squeeze casting process on a 2000 GM engine?
In model year 2000, GM began using a new high pressure "squeeze" casting process for the lower crankcase to reduce porosity in the aluminum , which may allow oil to seep through and leak (this has been a problem on some engines).
When was the Northstar V8 introduced?
Introduced in 1993 in the Cadillac Allante, Eldorado and Seville STS, the 4.6L 32-valve dual overhead cam all-aluminum V8 engine was a quantum leap forward for U.S. automakers. Initially rated at 295 horsepower, the Northstar V8 has been ranked as one of the "10 Best Engines in North America" by Ward's Auto World.
What engine did Cadillac use before Northstar?
Before the Northstar engine was produced, Cadillac was using the HT Overhead Valve V8, which is a piston engine that uses valves located in the cylinder head above the combustion chamber.
When did General Motors stop making Northstar engines?
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. If you are wondering if the Northstar engine is ...
What is limp mode on a Northstar engine?
One notable feature of the Northstar engine includes the limp mode, which allows the engine to keep running for a short amount of time without any coolant running through the system in case of an emergency.
How much horsepower does a Northstar engine have?
The engine was capable of putting 300 horsepower out of its 4.6-liter engine, complete with a 90 degree V8 block with 4 bore spacing split into upper and lower halves.
What was the last Northstar car?
Finally, the last car to receive a Northstar engine was the Cadillac STS, a midsize luxury 4 door sedan that was manufactured from 2004-2011 and equipped with a six speed automatic transmission.
What is a Northstar engine?
The Northstar engine series was a group of high performance V engines produced by General Motors, an American multinational corporation headquartered in Detroit that focuses on the manufacturing, marketing, and distribution of vehicles and vehicle parts, between 1993 and 2011. Originally considered GM’s most complex engine, the double overhead cam and the four valve per cylinder aluminum block engine was most commonly associated with the Northstar series in the Cadillac. The Cadillac was a division of the General Motors Company that designs and features luxury vehicles.
How many liters is a Northstar engine?
In the basic form of the Northstar engine, the mechanism was designed to displace around 4.6 liters, with the supercharged version being a 4.4-liter engine. Different kinds of Northstar engines were used at Oldsmobile and in several high-class and luxury Pontiacs in the 2000s, making you wonder if the Northstar engine was really good or bad.