No heat 2004 Grand Prix

Tiny
ATTI2DE60
  • MEMBER
  • 2004 PONTIAC GRAND PRIX
2004 Grand Prix, no heat, blower works, solvent full, thermo replaced, flushed, any other suggestions?
Sunday, January 9th, 2011 AT 2:37 PM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,262 POSTS
Start the engine, let it warm up with the heater on high. Feel both heater core hoses. If both are hot, the problem is with the blend door. If only one gets hot, try flushing the heater core. It may be plugged.
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Monday, February 21st, 2011 AT 5:28 AM

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