CaseyB

2000 Honda civic
when air conditioning is turned on engine seems to loose horse power and it makes a chirping noise under hood and inside cabin near glove box

Former User

Does the A/C work well? Does the condenser fan run? If so, tighten or replace the A/C belt.

Bashismashi

I believe I had this same problem a few months back, and for me it was the A/C compressor was locked up. It started as a small noise at first, kind of sounded like a piece of paper was being hit by the fan or something, and eventually it got to be a horrible sound and when I turned on the AC you could seriously feel it throttle down the engine really bad. Finally I bought a new compressor myself and had it installed and then the problem went completely away.

LownSlowEkd16

It could very well be the belt. Either adjust the tensioner or replace the belt.

CaseyB

the a/c is not as cold as it used to be...already replaced the compressor about a year ago. I had the belt looked at while fixing another problem and the mechanic said it was fine

Former User

You need a manifold gauge set to measure the pressures on the low and high sides --->

Former User