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1999 Chevy S-10 no heat

Tiny
RT_PRINCESS03
  • MEMBER
  • 1999 CHEVROLET S-10
Heater problem
1999 Chevy S-10 4 cyl not su miles

I have a chevy S-10. Just replaced the thermasat and the heat was working then all of a sudden nothing is coming out, checked all the hose and fuilds all good any idea's what this could be?
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Tuesday, January 1st, 2008 AT 4:35 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Might want to check the heater core for clogging and also if it has one the heater control valve. Could also be a air mix/blend/mode door not opening or actuator malfunctioning or vacuum hose problem.
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Tuesday, January 1st, 2008 AT 4:50 PM

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