Noisy A/C clutch - Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars

speaker_king · 08-15-2009, 19:35

The A/C clutch is really noisy, What could i do?

**jwko** · 08-15-2009, 20:10

Replace the clutch assembly. Should run you under 100 bucks. Order from rockauto and use their discount code, will be even cheaper. RockAuto Discount Code

You'll need a clutch removal tool, Autozone will loan you one with a deposit.

**chipset** · 08-17-2009, 08:20

Are you sure it's the compressor clutch and not the actual compressor ? That system
has an under slung compressor and famous for leaking at the case seams and or the
suction muffler. You may be hearing a compressor knock due to lack of oil.

speaker_king · 08-17-2009, 18:01

Quote:

Originally Posted by chipset

Are you sure it's the compressor clutch and not the actual compressor ? That system
has an under slung compressor and famous for leaking at the case seams and or the
suction muffler. You may be hearing a compressor knock due to lack of oil.

Its only noisy when the clutch spins(when i have the AC on)

**jwko** · 08-17-2009, 18:11

Chip makes a good point speaker king. It could very well be the compressor itself.

speaker_king · 08-17-2009, 18:42

On another note. when i accelerate, the ac goes out for a while. Just hot air comes out. I know its full, cause it was converted over to r-134a the other day. What would cause that? I dont know if it did it before, cause i never really used it.

**jwko** · 08-17-2009, 18:46

Usually low refrigerant pressure will cause that.

You did the retrofit job? Read the last 2 post in this thread concerning oil 94 Taurus air conditioning compressor

speaker_king · 08-17-2009, 18:51

Quote:

Originally Posted by jwko

Usually low refrigerant pressure will cause that.

You did the retrofit job? Read the last 2 post in this thread concerning oil 94 Taurus air conditioning compressor

Yes retrofit, from autozone.

**chipset** · 08-18-2009, 09:05

If your compressor only makes noise when the clutch is engaged that is compressor knock. Lack of oil or already damaged. The actual clutch flywheel and inner bearing only stop spinning when the engine is off. Unless the bearing is shot there will be no noise. A few things will shut down the compreesor on acceleration. Under charged, over charged and normal. A lot of A.C. systems automaticly shut down on acceleration to give extra H.P. and speed. Just because AutoZone did your retro fit doesn't mean it was done properly. I've seen some seriously botched retro fits. 134A is not easy to work with and i've been in the A.C. auto and commercial busness for over 40 years. I HATE 134A. I use 401A for my retro fits. Direct drop in. No oil changes. Same T.D. across the coil. Very expensive.

speaker_king · 08-18-2009, 14:46

No, autozone didnt do it. My uncle is a mechanic and he had it vacuumed and then installed. How can i check the oil? It still blows when i accelerate, but it not cold. As i may as well turn the ac off.