When idling the A/C does not blow cold air

PETROYADA

MEMBER
2014 MITSUBISHI OUTLANDER SPORT
2.0L
4 CYL
4WD
AUTOMATIC
110,000 MILES

Why the car A/C not blowing cold air when idle?
Low pressure side from ac cooler is too high and high pressure side is too low.
When accelerating about 2,000 rpm's the blowing cold air will be perfect.
Please send me how can I rectify the problem, and how can I dismantle compressor inside if required?
Many thanks.

4 Replies

ASEMASTER6371

MECHANIC
52,797 POSTS

Good afternoon,

I need the high and low side readings when the system is running.

Are the cooling fans running with the A/C on?

https://www.2carpros.com/articles/how-an-electric-cooling-fan-works

If they are not working, the air will not be cold especially at idle. When you drive, you are forcing air through the radiator.

Roy

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Friday, May 1st, 2020 AT 11:59 AM

PETROYADA

MEMBER
66 POSTS

Yes, the cooling fans are running with the A/C on.

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Friday, May 1st, 2020 AT 5:51 PM

PETROYADA

MEMBER
66 POSTS

Low side :45 psi.
High side : 150 psi.
In idle.

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Friday, May 1st, 2020 AT 5:52 PM

ASEMASTER6371

MECHANIC
52,797 POSTS

Okay, the low side is too high. It should only be 25-30 pounds and rock solid.

The high side should be 2 times outside temp plus 15%.

It looks like you need a expansion valve and a dryer so far.

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

Roy

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