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How much pressure should I put on my coolant tank?

How much pressure should I put on my coolant tank?

The cooling system runs up to 15 lbs of pressure– and should release any pressure over that. The cap also is suppose to let air back into the system as it cools off. If the cap is stuck, it will cause a collapsed hose when cool. If any doubt replace the cap.

Why does my Duramax engine still have coolant?

I’m not loosing coolant and the engine seems to be running OK, it just seems unusual for the cooling system to remain pressurized for days after the engine was last started. It’s an ’01 Duramax with 75k on it with a new set of injectors just installed.

Why is there pressure in my coolant reservoir when the engine is running?

Additionally, you can fill the radiator with the car cool, leave the cap off, and start the engine. If you are getting combustion pressure into the cooling system, coolant will come out. If the vehicle has its pressure relief on the reservoir then this can be normal.

Where does the coolant go when the engine is cold?

Open the radiator cap when the engine is cold and you will see that the coolant level is touching the top of the cap’s flange. The rest of the cooling system comprises a small expansion tank and a hose connecting to the radiator. The refrigerant in the tank should be on the same level as ‘COLD’ when the engine is cold.

The cooling system runs up to 15 lbs of pressure– and should release any pressure over that. The cap also is suppose to let air back into the system as it cools off. If the cap is stuck, it will cause a collapsed hose when cool. If any doubt replace the cap.

What kind of coolant does a Duramax have?

It’s an ’01 Duramax with 75k on it with a new set of injectors just installed. Would like to hear from some LB7 owners about what their rigs are doing. Thanks………. Backfeeding the cooling system with air, or another method is a good way to check for leaks.

Is there pressure in the coolant reservoir even when engine is cold?

Pressure In Coolant Resovir, Even When Engine Is Cold??? Has anybody noticed pressure in the plastic jug coolant reservoir, even when the engine hasn’t been started for a few days?

What happens when you release pressure in coolant tank?

When you release the pressure in a hot engine, the coolant will boil and puke out coolant. Nascar engines run around 75 lbs pressure, but also must run straight water. Hate to be the first one to say this.

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Ruth Doyle