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Old 10-15-2008, 11:48 AM   #1
Rally Punx
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Default Driving Car Without A/C Belt: Good or Bad??

It might sound stupid, but I really don't know the answer to this one and searches didn't produce an answer either. I've never had to deal with A/C issues until now (and both my cars are having A/C issues too )

My A/C compressor clutch is toast and I have not driven my car for a while now due to it. I wanted to know if I take the A/C belt out, can I drive the car around until I buy another compressor?? I took the belt out when I was troubleshooting the problem and the car runs great without it, but I don't know if I will cause some damage to other parts in the car if I drive the car without the A/C belt. Obviously I won't have any A/C, but with the cold weather approaching, is not as big of a concern for now.

On another note, does the A/C belt power the heater as well?? Will I be able to use the heater without the A/C belt??
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Old 10-15-2008, 11:58 AM   #2
Haelan
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You can remove the AC belt and run without it no problems. Your heat will work fine but the defrost settings won't function.
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Old 10-15-2008, 12:18 PM   #3
skimobile
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I've been running with no belt (or AC compressor) for a long time now.
No issues running without it.
It should help on parasitic drag as well.
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Old 10-15-2008, 12:32 PM   #4
d-ta
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Quote:
Originally Posted by Rally Punx View Post
On another note, does the A/C belt power the heater as well?? Will I be able to use the heater without the A/C belt??
The a/c system does not have anything to do with the heating system of the car so you're fine. FYI:

Quote:
The heater in your car is basically a smaller version of your cooling systems radiator. Hot engine coolant is circulated through a small radiator, often times called a heater core. A fan is positioned in front of the heater core to blow cold outside air over the fins. As this air travels over the heater core, it heats up and becomes the hot air which blows out your heater vents.

Source: http://www.autoeducation.com/autoshop101/hvac.htm
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Old 10-15-2008, 03:54 PM   #5
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Quote:
Originally Posted by d-ta View Post
The a/c system does not have anything to do with the heating system of the car so you're fine. FYI:


Source: http://www.autoeducation.com/autoshop101/hvac.htm
I wouldn't say it has NOTHING to do with it. Try turning on defrost with full heat... Your AC compressor certainly is running then. As haelen mentioned, you get heat, just no defrost capability.
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Old 10-15-2008, 05:19 PM   #6
leecox6178
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It should run just fine. Just make sure that's the only accessory you take out of the loop.
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Old 10-15-2008, 08:00 PM   #7
TDagen
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Yes I have removed my air conditioning compressor condeser and lines. It broke-weight savings, also opens up the radiator...Anyhoo won't hurt.
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Old 10-15-2008, 10:34 PM   #8
Rally Punx
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All, thanx for the prompt responses. I thought it wouldn't hurt anything, but wanted to be sure. As for the heater, I learned something new today. Yayyyy
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Old 10-16-2008, 06:59 PM   #9
Jon W Says
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AC compressor def turns on with defrost, that is how it defrosts, by removing water vapor from the air blowing on the windshield using the condenser, it is then heated by the heater core to help remove the "fog" as quickly as possible. I had a huge argument with my cousin(gay evo owner) and proved his ass wrong!
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Old 10-18-2008, 05:58 AM   #10
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I don't like the a/c coming on when you set the air flow to the defrost/floor position. So much so that I cut the wire that triggers the a/c via the flow selector dial. If I wanted the a/c, there is a button labled a/c.
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Old 10-19-2008, 08:13 AM   #11
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The AC is not needed to defrost the car. It helps, but is not needed.s
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Old 10-20-2008, 03:29 AM   #12
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my ac belt tensioner pulley seized on me back in february, causing the belt to tear...i just cut it out and left it alone will summer came...since then I have replaced the tensioner pulley and belt...

car ran perfectly fine without it...although the "de-fogging" of the windows took longer than with the AC belt on...
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Old 10-20-2008, 04:28 PM   #13
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In the meantime, you might want to unplug the compressor from the electrical system until you get a replacement. If something melts in the broken clutch housing and causes a short, you're in for a bigger headaches diagnosing wiring.
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Old 10-20-2008, 04:44 PM   #14
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i think everyone hit this one right on.
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Old 10-21-2008, 12:42 AM   #15
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Is there a possibility that removing the belt would somehow cause an unbalanced tension on the crank pulley?
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Old 02-24-2015, 12:22 PM   #16
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Thank you all for this thread, even though it's dead. No more whining sound from the engine bay.
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Old 12-31-2017, 08:09 PM   #17
terrainasaurus
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Kudos to this post!

My ac compressor belt blew up and there are melted rubber bits in there. At least I can still drive and hit the mountain bike trails tomorrow.

Happy New Year!!!!!!!!!!!!!
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Old 07-15-2018, 03:29 PM   #18
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I'm planning to just cut the a/c belt and now that I noticed this thread also unplug the A/C wires.

Is it true that you have to replace the condenser and other parts or can I just replace the compressor?
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Old 07-15-2018, 04:28 PM   #19
Subieroadkill
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Quote:
Originally Posted by Travistee View Post
I'm planning to just cut the a/c belt and now that I noticed this thread also unplug the A/C wires.

Is it true that you have to replace the condenser and other parts or can I just replace the compressor?
U can just replace the compressor and then add pag oil needed and then u should be good.
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Old 07-15-2018, 05:14 PM   #20
Charlie-III
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Quote:
Originally Posted by Travistee View Post
I'm planning to just cut the a/c belt and now that I noticed this thread also unplug the A/C wires.

Is it true that you have to replace the condenser and other parts or can I just replace the compressor?
Quote:
Originally Posted by Subieroadkill View Post
U can just replace the compressor and then add pag oil needed and then u should be good.
Sorta depends on if the system was open to ambient air and for how long.
If a failed compressor, then likely evacuate the system, replace compressor, recharge, enjoy cold air.
If an older system, maybe a new seal kit and other bits due to age before a leak test and recharge.
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Old 07-16-2018, 01:04 PM   #21
CarmelValleyWRX
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i always thought my car was a tiny bit faster with the ac belt off. it was for sure quieter due to crunchy pulley bearings. but i like AC so i put the belt back.

i always thought you could just put a new "dryer" canister in there, pull a vacuum and recharge and be good to go. no reason to replace the condenser unless it has a leak or something.
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Old 07-17-2018, 07:06 PM   #22
cedricthebugeyewrx
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Thumbs up

I have been running without an ac belt for the past year with no issues as my compressor seized up
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