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Heater

Tiny
10FOTUCK
  • MEMBER
  • MAZDA 626
My heater only blows cold to warm air. Never gets hot. I replaced thermostat. Flushed radiator put new antifreeze in. No leaks. What else is there to check. Its a 1990 Mazda DX626 2.2L 4 banger no turbo. If it has a heater control valve tell me where it is or where it should be. Thanks!
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Thursday, January 12th, 2006 AT 11:55 AM

3 Replies

Tiny
2CARPRO JACK
  • MECHANIC
  • 11,533 POSTS
It might not have one. The blend door under the dash could be the problem. Sometimes pens and the such fall in the vents and cause door problems
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Wednesday, January 18th, 2006 AT 5:41 PM
Tiny
10FOTUCK
  • MEMBER
  • 28 POSTS
I put some cardboard in front of radiator and guess what? Heater and defroster getting hot air again. So what do you think know?
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Thursday, January 19th, 2006 AT 11:36 AM
Tiny
10FOTUCK
  • MEMBER
  • 28 POSTS
Also I drove it home from work about 15 mi. Or so and there was no pressure on the radiator cap when I opened it while car was running. I replaced that as well when I replaced thermostat.
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Thursday, January 19th, 2006 AT 6:56 PM

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