Refilling Radiator

[tommypic]

I want to make sure I got the radiator and engine block full . is there as easy way to purge the system to make sure its full of coolant ? if so how , I got the res tank full and then some

[Zembonez]

I want to make sure I got the radiator and engine block full . is there as easy way to purge the system to make sure its full of coolant ? if so how , I got the res tank full and then some

Easiest way to initially fill it is to remove the top hose at the radiator and slowly fill until fluid is coming out of BOTH the radiator and the hose. This gets the engine as full as possible Then fill the reservoir to the line and run through a few hot / cold cycles while keeping a check on the level. Add to the reservoir as needed to keep the coolant level full. This method works great for eliminating air pockets and eliminates a lot of air bleeding.

[MS3DALE]

You don't even have to do that,Basically you just "fill it" at the tank....On the GEN III & GEN IV engines you don't have to worry about air pockets due to there being an air bleed pipe on the top of the engines.

 

From the service manual....

 

Slowly fill the cooling system with a 50/50 coolant mixture. Refer to Approximate Fluid Capacities.

Install the coolant pressure cap.

Start the engine.

Run the engine at 2,000-2,500 RPM until the engine reaches normal operating temperature.

Engine should reach an operating temperature of 90°C (194°F) and the upper radiator hose should be HOT.

Allow the engine to idle for 3 minutes.

Shut the engine OFF.

Allow the engine to cool.

Top off the coolant as necessary.

[Zembonez]

You don't even have to do that,Basically you just "fill it" at the tank....On the GEN III & GEN IV engines you don't have to worry about air pockets due to there being an air bleed pipe on the top of the engines.

 

From the service manual....

 

Slowly fill the cooling system with a 50/50 coolant mixture. Refer to Approximate Fluid Capacities.

Install the coolant pressure cap.

Start the engine.

Run the engine at 2,000-2,500 RPM until the engine reaches normal operating temperature.

Engine should reach an operating temperature of 90°C (194°F) and the upper radiator hose should be HOT.

Allow the engine to idle for 3 minutes.

Shut the engine OFF.

Allow the engine to cool.

Top off the coolant as necessary.

True... but the initial fill is much more complete if you fill it from the top hose. Less air in the system to begin with means less adding later. I revised that post... it didn't make much sense in original form.

[MS3DALE]

There are a few different ways of doing this . A truck model will help.

[GARB55]

You don't even have to do that,Basically you just "fill it" at the tank....On the GEN III & GEN IV engines you don't have to worry about air pockets due to there being an air bleed pipe on the top of the engines.

 

From the service manual....

 

Slowly fill the cooling system with a 50/50 coolant mixture. Refer to Approximate Fluid Capacities.

Install the coolant pressure cap.

Start the engine.

Run the engine at 2,000-2,500 RPM until the engine reaches normal operating temperature.

Engine should reach an operating temperature of 90°C (194°F) and the upper radiator hose should be HOT.

Allow the engine to idle for 3 minutes.

Shut the engine OFF.

Allow the engine to cool.

Top off the coolant as necessary.

 

Can't get much easier than that!

[MS3DALE]

You don't even have to do that,Basically you just "fill it" at the tank....On the GEN III & GEN IV engines you don't have to worry about air pockets due to there being an air bleed pipe on the top of the engines.

 

From the service manual....

 

Slowly fill the cooling system with a 50/50 coolant mixture. Refer to Approximate Fluid Capacities.

Install the coolant pressure cap.

Start the engine.

Run the engine at 2,000-2,500 RPM until the engine reaches normal operating temperature.

Engine should reach an operating temperature of 90°C (194°F) and the upper radiator hose should be HOT.

Allow the engine to idle for 3 minutes.

Shut the engine OFF.

Allow the engine to cool.

Top off the coolant as necessary.

True... but the initial fill is much more complete if you fill it from the top hose. Less air in the system to begin with means less adding later.

 

 

True,I see where your coming from now Jim.

I was confused when you said to remove the hose and fill from both ends,then fill the reservoir,etc.

 

One things for sure,you don't have to worry about air pockets on these GEN III/IV engines,that sure is nice!

[MS3DALE]

You don't even have to do that,Basically you just "fill it" at the tank....On the GEN III & GEN IV engines you don't have to worry about air pockets due to there being an air bleed pipe on the top of the engines.

 

From the service manual....

 

Slowly fill the cooling system with a 50/50 coolant mixture. Refer to Approximate Fluid Capacities.

Install the coolant pressure cap.

Start the engine.

Run the engine at 2,000-2,500 RPM until the engine reaches normal operating temperature.

Engine should reach an operating temperature of 90°C (194°F) and the upper radiator hose should be HOT.

Allow the engine to idle for 3 minutes.

Shut the engine OFF.

Allow the engine to cool.

Top off the coolant as necessary.

 

Can't get much easier than that!

 

 

Yeah......but some people can mess it up!

[GARB55]

You don't even have to do that,Basically you just "fill it" at the tank....On the GEN III & GEN IV engines you don't have to worry about air pockets due to there being an air bleed pipe on the top of the engines.

 

From the service manual....

 

Slowly fill the cooling system with a 50/50 coolant mixture. Refer to Approximate Fluid Capacities.

Install the coolant pressure cap.

Start the engine.

Run the engine at 2,000-2,500 RPM until the engine reaches normal operating temperature.

Engine should reach an operating temperature of 90°C (194°F) and the upper radiator hose should be HOT.

Allow the engine to idle for 3 minutes.

Shut the engine OFF.

Allow the engine to cool.

Top off the coolant as necessary.

 

Can't get much easier than that!

 

,

Yeah......but some people can mess it up!

 

 

That's for sure!! Opps you were suppose to put coolant in there, not window washer fluid..

[tommypic]

I should have said the year its the 08 Silverado