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2001 Pontiac Grand Prix dont get heat

Tiny
JACJ
  • MEMBER
  • 2001 PONTIAC GRAND PRIX
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 123,555 MILES
My heater hasent worked at all this year. I changed the thermostat still dosent heat could the waterpump be bad as I dont think the coolant is circulating could this be the problem?
Wednesday, February 24th, 2010 AT 12:12 PM

1 Reply

Tiny
MMPRINCE4000
  • MECHANIC
  • 8,549 POSTS
If waterpump is bad, then car would overheat.

Most likely the heater core is blocked.

On hot engine, quickly touch upper and lower heater core hoses. If one is hot and other is cool, then core is blocked. Wear gloves when doing this.
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Thursday, February 25th, 2010 AT 7:44 AM

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