• Tiny
  • hostilblazer
  • 2007 Chevrolet Malibu

Engine Cooling problem
2007 Chevy Malibu 4 cyl Two Wheel Drive Automatic 65000 miles

how can I perform a radiator flush by myself on my 2007 chevy malibu I can find no drain plug under the radiator

Friday, July 30th, 2010 AT 12:25 PM

1 Answer

  • Tiny
  • mhpautos
  • Expert
  • 30,495 posts

Hi there,

Some radiators do not have drain plugs, to do a complete flush remove a heater hose, lower radiator hose at the radiator and the thermostat housing & thermostat, back flush the heater with low pressure water, then place water hose into heater hose that is connected to the block, flush here, also flush out radiator & flush with hose in thermostat housing, when water runs clean, you are done, replace thermostat and seal/ gasket with new, replace hoses and top up coolant, bleed air and run till normal temp is up, check heater is hot, check for any leaks.

Mark (mhpautos)

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Saturday, July 31st, 2010 AT 12:03 AM

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