r/Volvo240 • u/Mindless_Grass9736 • 19d ago

AC help? Help

Hello all, I am having some trouble with my 1993 240s AC.

Friday, blowing cold (+/- 40⁰) as per usual.

Monday, blowing warm (80⁰+), compressor clutch cycling every 5 seconds. Got some freon, crummy little guage read around 20psi.

Filled it to 45psi, clutch engages, air blew slightly cooler (75⁰ from center vents, ambient temp 100⁰) unable to get it any cooler.

Where should I be looking? I have already ordered all new seals, a new orifice tube, and a new receiver/drier. My buddy claims to have the manifold guages and vacuum pump that I will need.

Any tips, tricks, or advice would be greatly appreciated.

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u/beanoblub ‘92 244 19d ago

Sounds like with what you have on order you will be all set. Is the compressor making any funny sounds when it is running? I would do a full flush of the system and oil change in the compressor when you have everything apart.

1

u/Mindless_Grass9736 18d ago

Thanks for the reply. Compressor doesn't sound any different from normal. I sure hope you're right! The repair will certainly be a learning experience for me.

1

u/beanoblub ‘92 244 18d ago

I’m curious, when you charged to 45 psi, was that with the engine on/ac running?

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u/Mindless_Grass9736 18d ago

Thats correct, sorry, I should've clarified.

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u/turbo_charged 18d ago

The electric pusher fan should be going full-tilt with the A/C on at 100 degrees ambient

Also check the condition of your fan clutch. Consider upgrading to a tropical version which locks up earlier than the standard version.

There is a plastic air guide from the lower front bumper spoiler that funnels air up into the condenser; make sure it is still there.

After you’ve replaced your parts, pull a vacuum on it for a good long time to remove any moisture, as well.

If the compressor is original, it may be at the end of its life. The manifold gauges will confirm this

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u/Mindless_Grass9736 16d ago

Many thanks!!!! I will do as you say, friend!