• Tiny
  • skippy-jack
  • Pontiac Grand Prix

I have a 2003 grand prix which was recalled and the dealer added some kind of pellets to the coolent. Now I have no heat and it feels like there is gravel in the heater hoses that run to the heater core. The pellets were added a couple of years ago. How do I flush the heater core?

Saturday, January 13th, 2007 AT 9:06 AM

1 Answer

  • Tiny
  • backyardmechanic
  • Member

You need to remove both heater hose from the heater core. Next take a garden hose and flush the core until the water coming out is flowing with a good stream. : ) Good luck

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Saturday, January 13th, 2007 AT 3:39 PM

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