Tip & How-To about Chevrolet 1500

Engine coolant replacement

Now that the winter season is on us you should have had your cooling system tested and replaced if necessary.
Your engines coolant never looses if effectiveness for keeping the system from freezing but it does loose its ability to neutralize the acids that are created from every day operation.
These acids if left unchecked with old worn out antifreeze will begin to corrode radiators, heater core, hoses and engine component such as freeze plugs, head gaskets, intakes gaskets and water pumps. None of these effects will be notice immediately, but over time you will begin to develop leaks and other cooling system component failures.
With the addition of the "new" extended life coolants, automotive manufacturers had realized they would not be able to offer extended warranties of 50k to 100K without this new coolant, therefore it was necessary to develop these high performance coolants.
As a rule of "thumb" if you have an older vehicle with green coolant, the cooling system should be flushed and replaced every 2 years.
If you have a newer vehicle with the extended life coolant, I would recommend a system flush and replacement every 5 years.
If you follow these guide lines you will be able to enjoy a trouble free winter season with no unnecessary cooling system failures.
As a side note, don't neglect and forget to change the thermostat with every flush and fill.
Good luck and happy motoring.........

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1 Answer

2007 Chevy Uplander V6 loosing coolant when driving,more when it is really cold outside.

You need to have your cooling system pressure tested. This will let you examine the engine area without the hazards of the engine running. You may have head gasket issues. Depending on the area of the leak, your cylinder compression can actually pressurize the cooling system. When the cooling system pressure exceeds the rating of the cap, the cap seal opens and can blow coolant back into the overflow bottle where it eventually leaks while driving. Check to see if your overflow bottle is full.

Mar 16, 2014 | 2007 Chevrolet Uplander

1 Answer

How do I add refridgerant to my 2000 corolla

Check this procedure to add and check Coolant level...

Warning: Do not attempt to remove the radiator pressure cap or expansion tank cap when the engine is hot, as there is a very great risk of scalding. Do not leave open containers of coolant about, as it is poisonous.

Car Care
• With a sealed-type cooling system, adding coolant should not be necessary on a regular basis. If frequent topping-up is required, it is likely there is a leak. Check the radiator, all hoses and joint faces for signs of staining or wetness, and rectify as necessary.

• It is important that antifreeze is used in the cooling system all year round, not just during the winter months. Don't top up with water alone, as the antifreeze will become diluted.


1. The coolant reservoir is located on the left-hand side of the engine compartment. The coolant level is visible through the reservoir.

2. If topping-up is necessary, wait until the engine is cold and remove
the cap from the reservoir. Add a mixture of water and antifreeze to the reservoir until the coolant is at the correct level. Refit the cap and tighten it securely.

Hope helps (rememnber rated this).

Jul 08, 2010 | 2000 Toyota Corolla

1 Answer

When is it necessary to change anti-freeze in 2005 ford explorer?

I would do it every two seasons, or every 60,000 miles, most of the coolant now say they go 5 years or 100,000 miles but i'l tell you what, the cars i see have dirty cooling systems due to lack of coolant flushes. the heatercores get blocked and the coolant eats through gaskets, i change mine and tell customers to change it every other fall, and have it tested every year.

Jun 26, 2010 | 2005 Ford Explorer

4 Answers


take fan belt off so water pump does not turn. take thermostat housing off. make sure water level is close to top of thermostat housing (inside) start it, look for air bubbles... If you get them it is due to leaking headgasket, this will be the cause of your overheating and I suspect it's pushing water out too... Just a guess with the limited details.

Sep 18, 2009 | 1998 Land Rover Discovery

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