Why doesn't my radiator flush when opened?

115,000 MILES
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RHANNE
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  • 1 POST
I turn my petcock 1/4 to open, but nothing comes out. Very dirty water and first time changed. What can I do?
Jan 10, 2012 at 3:17 PM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,988 POSTS
Flush the radiator out and make sure the water is clean
Jan 10, 2012 at 3:22 PM
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CARADIODOC
  • ✓Experienced Mechanic
  • 34,403 POSTS
We never open the petcock because something cracks inside and you'll have a leak that drips about once every ten seconds. That happened on about nine out of ten cars. We always pull the lower radiator hose off. The only fix for a leaking petcock is to replace the radiator. You may not have any damage yet. Once you turn the petcock a quarter turn, you must pull it out toward the rear of the car.
Jan 10, 2012 at 3:22 PM
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