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Air conditioner only blows out hot air.

Tiny
GOTNVOLS19
  • MEMBER
  • 1997 MAZDA B2300
  • 161,000 MILES
I have a Mazda B2300 and recently my climate control only blows out hot air. I filled the coolant and recharged the refrigerant. Its funny because at normal driving speed it blows cold air when on A/C, but when I accelerate past 30mph it blows out extremely hot air.
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Saturday, June 2nd, 2012 AT 7:14 AM

4 Replies

Tiny
SATURNTECH9
  • MECHANIC
  • 30,869 POSTS
So you have auto climate control or manual climate control?How much charge was in the system before you charged it?Also how much charge did you add to the system?What is your high and low pressure readings with the ac on?
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Saturday, June 2nd, 2012 AT 7:21 AM
Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
Check the vacuum lines for the mode door control for leakages.
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Saturday, June 2nd, 2012 AT 1:48 PM
Tiny
GOTNVOLS19
  • MEMBER
  • 2 POSTS
I used one normal size can of refrigerant. As far as the pressures ill have to have that checked. And it is a manual control.
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Sunday, June 3rd, 2012 AT 1:57 AM
Tiny
SATURNTECH9
  • MECHANIC
  • 30,869 POSTS
So you put one 12 oz can so you could be under charged or over charged aince you dont know how much was in it when you charged it.
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Sunday, June 3rd, 2012 AT 5:56 AM

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