2003 Chevy Astro coolant

2003 CHEVROLET ASTRO
450,000 MILES • 6 CYL • 2WD • AUTOMATIC
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DBOCKLET
  • MEMBER
  • 1 POST
I want to replace radiater coolant I need to know how to flush out old fluid,& how much fliud it takes to refill
May 21, 2009 at 8:52 AM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
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JACOBANDNICKOLAS
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 110,190 POSTS
Drain the old coolant from the petcockl at the bottom of the radiator. Based on what brand of radiator flush you purchase will determine the process. The manufacturer will have the directions on the container. Also, if you only flush the radiator, figure around 1.5 gal 50/50 mix of coolant / water. Make sure to use the proper type of coolant. DO NOT MIX FACTORY DEXCOOL WITH ANY OTHER TYPE OF COOLANT.
Jun 1, 2009 at 9:30 AM
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