A/C does not blow cold air

Tiny
CBRIGHT1
  • MEMBER
  • 1995 MITSUBISHI DELICA
  • 2.8L
  • 4 CYL
  • TURBO
  • 4WD
  • AUTOMATIC
  • 130,000 MILES
A/C clutch is working. Turning A/C on engages clutch, off disengages clutch. Compressor replaced a year ago by repair garage, checked for leaks, and recharged. Blew cold last summer. Tried to charge system with basic charge bottle, but the gauge indicated full so I didn’t charge.
Sunday, July 11th, 2021 AT 7:42 AM

1 Reply

Tiny
KASEKENNY
  • MECHANIC
  • 18,907 POSTS
The fact that there were recent repairs means we need to start with checking the pressure just to be sure there is not a real slow leak that took this long to not be able to cool.

Here are some guides that will help with this:

https://www.2carpros.com/articles/re-charge-an-air-conditioner-system

https://www.2carpros.com/articles/air-conditioner-leak-detection

https://www.2carpros.com/articles/car-air-conditioner-not-working-or-is-weak

If the pressure checks out then we can move onto the blend door issue. But if the pressures are not checked then doing anything else will not fix it so we need to ensure they are correct before we proceed.

Here is info on the blend door if the pressures are okay:

https://www.2carpros.com/articles/replace-blend-door-motor

I attached a chart that shows proper pressures based on ambient temperature so let us know what you find with this and we can go from there. Thanks
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Sunday, July 11th, 2021 AT 10:02 AM

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