draining the cooling system

2004 CHEVROLET IMPALA
65,000 MILES • 6 CYL • FWD • AUTOMATIC
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JONATHANKIM
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  • 2 POSTS
where is the drain **** on the 2004 chevy impala?
Dec 11, 2010 at 10:02 AM
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FACTORYJACK
  • ✓Experienced Mechanic
  • 4,159 POSTS
It is possibly on the lower tank of the radiator, maybe left(driver) side. It is also possible that there is not one, some O.E. radiators did come with a drain valve. In that case, the lower radiator hose connection is the drain. There is a generic procedure in service info that says open the drain ****, but it shows no illustration.
Dec 11, 2010 at 10:44 AM
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JONATHANKIM
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OK, thanks. I could not find one. Opening the lower radiator hose does not seem like a viable way of flushing the cooling system by running water through the system. Oh, well....
Dec 11, 2010 at 2:15 PM
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FACTORYJACK
  • ✓Experienced Mechanic
  • 4,159 POSTS
You could drain the system, fill it with water and run till it heats, and then drain again to flush. Is it just a maintenance flush of the system that you are after? At 65K, a simple drain and fill with new coolant mix should be adequate.
Dec 12, 2010 at 11:03 AM
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