Why isnt my heat working?

1997 PONTIAC SUNFIRE
4 CYL • FWD • AUTOMATIC
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CORNFED89
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  • 1 POST
I installed a new water pump on my 1997 pontiac sunfire but I aint got no heat at all?
Dec 8, 2010 at 11:02 AM
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LEGITIMATE007
  • ✓Experienced Mechanic
  • 5,121 POSTS
you may need to replace the thermostat. is one of the two hoses running into the firewall , hot?
Dec 8, 2010 at 11:06 AM
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LEGITIMATE007
  • ✓Experienced Mechanic
  • 5,121 POSTS
one of the two coolant hoses running into the firewall should be hot to the touch
Dec 8, 2010 at 11:09 AM
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WRENCHTECH
  • ✓Experienced Mechanic
  • 20,760 POSTS
You probably still have air pockets in the system and need to get it all bled out.
Dec 8, 2010 at 11:11 AM
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LEGITIMATE007
  • ✓Experienced Mechanic
  • 5,121 POSTS
yes wrenchtech has a good point, did you bleed the system?
Dec 8, 2010 at 11:14 AM
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