1999 Chevy S-10 heater not working but the blower still wor

Tiny
TINKGUFF
  • MEMBER
  • 1999 CHEVROLET S-10
  • 4 CYL
  • 2WD
  • MANUAL
  • 104,000 MILES
My heater is not working but the blower is working but blowing cold air. I saw the raditator had fluid but if that is the problem what else might I check
Thursday, January 29th, 2009 AT 1:33 PM

2 Replies

Tiny
2CARPRO JACK
  • MECHANIC
  • 11,533 POSTS
See if the heater hoses get hot. If only one is hot, you have a restriction in the heater core, if both are hot you may have an issue with the blend door under the dash
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Thursday, January 29th, 2009 AT 2:19 PM
Tiny
ISHEE77
  • MEMBER
  • 20 POSTS
Also, check the temperature gauge and see if the engine is running hotter than normal, the thermostat may not be opening correctly or all the way.
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Friday, January 30th, 2009 AT 1:14 AM

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