1996 Geo Prizm heat

Tiny
CBLADE
  • MEMBER
  • 1996 GEO PRIZM
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 150,000 MILES
I have changed thermostat and had cooling system flushed but still have little to no heat. What could be left to check?
Thursday, February 5th, 2009 AT 7:55 PM

1 Reply

Tiny
MMPRINCE4000
  • MECHANIC
  • 8,548 POSTS
Locate heater core on firewall, there are two hoses connected. With hot engine check upper and lower hose with hand (use gloves). If upper is hot and lower is warm/cool then the heater core is blocked.

If both warm/cold, then thermostat/waterpump.

If both hot, then blower, diverter, blend door.
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Friday, February 6th, 2009 AT 6:16 AM

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