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Old 05-02-2002, 01:27 PM   #1
Big_Hitter
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2009 FXT VF52/E85

Default A/C Compressor Shutoff

Anyone know what can be done to keep the a/c compressor on full time?

It seems that the thing goes on and off intermittantly.
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Old 05-02-2002, 01:32 PM   #2
Aprilia Jon
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This is so that it does not freeze your coils in the air exchanger in your car. Trust me, it will not work well at all to keep the compressor on all the time, in fact it would break something for sure. It is not a conspiracy to keep you sweating, I promise.

Jon
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Old 05-02-2002, 01:37 PM   #3
Prairie Dawg
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I think he's talking about the automatic compressor cut-out at full throttle. I'm sure there's a way to disable the feature, but I don't know what it is.

bump...
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Old 05-02-2002, 01:42 PM   #4
Big_Hitter
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It is the air conditioning compressor.

If it is normal for one to shut off, I've only noticed it happening in this vehicle.
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Old 05-02-2002, 02:10 PM   #5
Prairie Dawg
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It's normal on the WRX. It's designed that way for performance reasons. It's also a feature on some other cars...mostly those with small displacement engines that would need a 2-mile stretch of open road to pass someone, otherwise.

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Old 05-02-2002, 02:49 PM   #6
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Quote:
Originally posted by Prairie Dawg
...mostly those with small displacement engines that would need a 2-mile stretch of open road to pass someone, otherwise.

it's about 3.5 miles of open road with the air completely shut off in a Taurus. (if your lucky)
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Old 05-02-2002, 03:20 PM   #7
ATX25RS
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Quote:
Originally posted by LoriAngel


it's about 3.5 miles of open road with the air completely shut off in a Taurus. (if your lucky)

it takes me a few hundred feet in the RS...with the air con ON probably about 1 mile... damn underdrive pulleys
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Old 05-02-2002, 04:34 PM   #8
Legacy777
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The compressor cycles normally.....it is not because of performance reasons....it's just how it works. The pressure will build-up.....compressor will cycle off....when pressure decreases it will kick back on.

Usually if you have the fan on 3 or 4, it will cycle less or not cycle at all.

I believe 134a systems cycle alot more then R12 systems do.

The A/C system is designed to disengage the A/C compressor if throttle is at WOT. This is by design, performance, and safety....

Josh
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Old 05-02-2002, 10:15 PM   #9
Aprilia Jon
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Quote:
Originally posted by legacy777

The A/C system is designed to disengage the A/C compressor if throttle is at WOT. This is by design, performance, and safety....

Josh
That would be nice, does anyone know if it is true on the '01 RS? I guess I could just listen, but I am doing other things at WFO.

Jon
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Old 05-02-2002, 10:27 PM   #10
MooBob42
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Is there something different about the way the WRX compressor works versus, say, the one in the '99 Civic I used to have? I never noticed that its air conditioner cut out.
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Old 05-03-2002, 09:22 AM   #11
Legacy777
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It's the same on all subies. It's been that way since the introduction of the Legacy.

Start your car, turn on the A/C, open the hood, rev the engine at the throttle body, if you open the throttle all the way you will hear, and see the A/C clutch dissengaging.

MooBob.....is your A/C completely shutting off.....or are you just talking about the A/C clutch dissengaging?

Josh
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Old 05-04-2002, 01:39 AM   #12
MooBob42
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Err, I'm not sure. It's that issue where the A/C feels like it's working fine, but then slowly cycles to just vented air, then back to A/C, repeat, wash, rinse. I haven't had a chance to look under the hood.
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