A/C Intermittent Cooling
 

Summer is here.

Problem is that the A/C cools when car is first used for the first 30 minutes or so and then stops cooling.

I put in a can of refrigerant the other day and drove the car 25 miles during the heat of the day to run some errands. A/C worked great. Then on the way home A/C wasn't cooling very well.

I hooked up a A/C manifold gauge this morning and here is what I found:

Static pressure at 90 F ambient temperature:
Low side = 85 psig
High side = 90 psig

Load pressure at 1,500 rpm
Low side = 22 psig
High side = 230 psig

From pressure temperature tables it appears that the system is OK but does anyone see issues with these readings?

What year Civic?

When the A/C won't cool well, dose the condenser fan fail to run or does the compressor clutch fail to engage, or both?

99 Civic EX.

I will have to pay attention next time and give you a definitive answer. :)