with ac on feels like i am dragging a safe

[tjts1]

If your compressor is cycling frequently, the AC system is either over charged or under charged. If you just started using AC again for the year and you haven't serviced the AC yet Its probably low.This can wear out the compressor clutch very quickly.

[jblackburn]

I knew something never felt right with the AC in my car!

https://www.matthewsvolvosite.com/forums ... =1&t=39305

This thread (and my own from earlier) sparked my curiosity. The AC didn't work at all when I bought my car. I'd filled the system before when I had to put a can in it every 2 weeks last year and held the throttle at about 1500 RPM. At that engine speed, it didn't draw the pressure down enough that the compressor would click out. So I checked today and revved it up a bit - and the compressor clicked out like I knew I was feeling while driving along.

I added another can of R-134 this afternoon and held the throttle at (what sounded like) 3000 RPM while adding it in. It took in about half a mid-size can (that stuff has gotten EXPENSIVE!). I can now rev up to 4000 or so and didn't hear the thing click out.

Engine power running the AC while driving around town is now MUCH improved, and the AC is ICE COLD - better, even than the industrial AC at work!

I'm thinking the clicking in and out and putting a heavy load on/off the engine while accelerating confused the car's electronics faster than it could compensate, and it felt like it was bogging down. Try that test out on your car if it feels like that, and if it clicks out in a few seconds, you need to add more R-134!