go to the auto store and buy some prestone flush. instructions are on the back. basically you drain your radiator, pour in the flush, refill the system with water, run the engine with the heater on high for about 15 minutes, then drain the system again, refill it with 50/50 coolant.
A coolant flush on a 96 Z34 Chevy Monte Carlo helps greatly with increasing the efficiency of the cooling system. It removes buildup and contaminants from the system.
Do it yourself engine transmission flush and filter change on 2005 Chevy silverado 5.3?"
Clean the reservoir and flush the cooling system.
Depends on where you go.
To flush the cooling system in a Chevy 305, start by ensuring the engine is cool, then disconnect the lower radiator hose to drain the coolant into a suitable container. Use a garden hose to flush water through the system until it runs clear, then close the drain and refill the system with a 50/50 mix of coolant and distilled water. Run the engine with the heater on high for a few minutes to circulate the new coolant, and check for any leaks before sealing everything back up. Finally, monitor the coolant levels and top off as needed.
Remove radiator cap (when cold), open petcock valve at bottom of radiator (usually at the driver side bottom), drain. you'll wanna flush the system with some sort of over the counter flushing agent before you refill it. instructions are on the bottle.
you probably need to flush the coolant system. GM claims that the coolant is good for a ridiculous number of miles, but it is not so. The coolant breaks down and forms large clumps which will clog up the heater core. You may need to flush several times to get it all out.
The 2001 Chevy Venture typically requires about 12 quarts (or approximately 3 gallons) of coolant when performing a complete coolant system flush and refill. It's important to use a 50/50 mixture of coolant and distilled water for optimal performance. Always check the owner's manual for specific recommendations and guidelines related to your vehicle's cooling system.
You don't have to but it is a good opportunity to flush the system.
Ive never heard of draining coolant plugs except on a diesel engine . Once you drain the coolant and flush the system it should be fine
You can purchase a coolant flush kit from your local auto parts store for less than $10. It comes with directions.
If you must do it yourself ensure that you drain and capture all the old coolant. There is not a drain cock on the system. You must use the rad hose disconnect. The dex coolant does not like air. It is well worth your while to get a shop with an evacuation flush unit to replace the coolant. This method pushes out the old coolant with the fresh stuff. Effective and mixed to the proper proportion to maximize the long life of the Dexcool.