Air Conditioning problem

Hey guys.
Sometimes when my girlfriend turns on the AC in her 95 CIVIC LX the RPMs go down to about 400 and the car gets quite sluggish. When this happens it seems to be both when the car is at stand still or when it is being driven. It has happened to me when ever I drive it so I know she isn't crazy.
What could it be?
When the car does not use the AC everything is fine.
I have a friend who also has a CIVIC but it's a 94 EX and it also happens to him.

:confused:

Well they (rpms) should go down for a little bit, since the a/c is ran off the engine. But normally it's corrected after a few seconds. I have a weak engine, so when accelerating I always turn off the a/c beacuse the engine is like you said, very sluggish too. Sounds like your compressor might be siezing though if it's keeping the engine from running normally.

I have the same problem too. But my car goes to 200rpm when i turn on the A/C. And i don't know what it is. :(

check your lines and make sure there is no blockage....also take the care and have them check the a/c unit itself.

this subject post is kinda old...but i have the same problem...went to the shop to check it out with an overhaul specialist...says its an idler...beats the hell outta me wut that is exactly but its some lil black 2 inch long tube lookin thing behind/top of the intake manifold...usually about $170 to replace...thats what he said...might wanna check wit honda to be sure ^^;;