A/C Compressor Cycling

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Ryan Power

A/C Compressor Cycling

Post by Ryan Power »

Hello.
I've recently been having a problem with the A/C Compressor cycling while the
A/C or Defroster is on. It will usually run fine initially, it's when it tried to come on
a second time that the problems occurs. What will happen is the compressor will
engage for 1 to 3 seconds, then shut off for 1 to 5 seconds, then attempt to engage
again. It'll usually loop like this 5 or 6 times, then stay off for around a minute, then
start the sequence again. Looking at the sight glass, with the compressor running,
I'm seeing no bubbles followed by what appears to be mist. I've been unable to see
any large (oil) leaks from any of the A/C tubing and the hoses appear to be in good
condition. Is it just low on coolant or is there a relay/power problem?
Also...
it appears I can convert this system (R12) to an R134a system, however, according to
the Subaru dealer here, it will require a system flush, a new drier, a new pressure sensor,
and new hoses and gaskets. (300+ for the equipment alone). If it does need coolant, should
I just put R12 back into it (at around $2.50/1oz) or should I just look into the conversion?
Or should I just save up and buy a newer Subaru with an R134a system? :)

Thanks for any help in advance.
-Ryan

P.S. Buying a new/newer used car really isn't an option.

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Rod Grosvenor

A/C Compressor Cycling

Post by Rod Grosvenor »

Hi-sounds like the problem I had with my 92`s coil on my ac compressor. You can`t get the coil seperate so the whole unit is needed. At 126k, it`s not unusual to need this as I replaced mine @ 150k. I`d keep the R12 as it`s cooler than the 134 & you avoid the extra steps necessary to convert. I felt as though I`d received good, lengthy service from my ac, so I bit the bullet & did it right. My interior is so cold now you could hang meat in there! Total retail cost (parts & labor) could be around $600, but well worth it-(that`s 2 car payments); good luck-ROD (No. AZ.)

----- Original Message -----
From: Ryan Power <mailto:rpower@colorado.net>
To: BC-BFLegacyWorks@yahoogroups.com
Sent: Tuesday, July 17, 2001 12:56 AM
Subject: [BC-BFLegacyWorks] A/C Compressor Cycling

Hello.
I've recently been having a problem with the A/C Compressor cycling while the
A/C or Defroster is on. It will usually run fine initially, it's when it tried to come on
a second time that the problems occurs. What will happen is the compressor will
engage for 1 to 3 seconds, then shut off for 1 to 5 seconds, then attempt to engage
again. It'll usually loop like this 5 or 6 times, then stay off for around a minute, then
start the sequence again. Looking at the sight glass, with the compressor running,
I'm seeing no bubbles followed by what appears to be mist. I've been unable to see
any large (oil) leaks from any of the A/C tubing and the hoses appear to be in good
condition. Is it just low on coolant or is there a relay/power problem?
Also...
it appears I can convert this system (R12) to an R134a system, however, according to
the Subaru dealer here, it will require a system flush, a new drier, a new pressure sensor,
and new hoses and gaskets. (300+ for the equipment alone). If it does need coolant, should
I just put R12 back into it (at around $2.50/1oz) or should I just look into the conversion?
Or should I just save up and buy a newer Subaru with an R134a system? :)

Thanks for any help in advance.
-Ryan

P.S. Buying a new/newer used car really isn't an option.

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jonesboy@sunwave.net

A/C Compressor Cycling

Post by jonesboy@sunwave.net »

At 07:53 AM 18/07/2001 -0700, you wrote:


Hi-sounds like the problem I had with my 92`s coil on my ac compressor. You can`t get the coil seperate so the whole unit is needed. At 126k, it`s not unusual to need this as I replaced mine @ 150k. I`d keep the R12 as it`s cooler than the 134 & you avoid the extra steps necessary to convert. I felt as though I`d received good, lengthy service from my ac, so I bit the bullet & did it right. My interior is so cold now you could hang meat in there! Total retail cost (parts & labor) could be around $600, but well worth it-(that`s 2 car payments); good luck-ROD (No. AZ.)


I have a practically new (it had about 6,000km on it when I yanked the A/C from the car) A/C compressor from my '91 sitting in a box in the garage.

Make me an offer I can't refuse and it's yours :)

-=[Matt]=-



----- Original Message -----

From: Ryan Power <mailto:rpower@colorado.net>

To: BC-BFLegacyWorks@yahoogroups.com

Sent: Tuesday, July 17, 2001 12:56 AM

Subject: [BC-BFLegacyWorks] A/C Compressor Cycling



Hello.

I've recently been having a problem with the A/C Compressor cycling while the

A/C or Defroster is on. It will usually run fine initially, it's when it tried to come on

a second time that the problems occurs. What will happen is the compressor will

engage for 1 to 3 seconds, then shut off for 1 to 5 seconds, then attempt to engage

again. It'll usually loop like this 5 or 6 times, then stay off for around a minute, then

start the sequence again. Looking at the sight glass, with the compressor running,

I'm seeing no bubbles followed by what appears to be mist. I've been unable to see

any large (oil) leaks from any of the A/C tubing and the hoses appear to be in good

condition. Is it just low on coolant or is there a relay/power problem?

Also...

it appears I can convert this system (R12) to an R134a system, however, according to

the Subaru dealer here, it will require a system flush, a new drier, a new pressure sensor,

and new hoses and gaskets. (300+ for the equipment alone). If it does need coolant, should

I just put R12 back into it (at around $2.50/1oz) or should I just look into the conversion?

Or should I just save up and buy a newer Subaru with an R134a system? :)



Thanks for any help in advance.

-Ryan



P.S. Buying a new/newer used car really isn't an option.

To unsubscribe from this group, please send an email to:

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Ryan Power

A/C Compressor Cycling

Post by Ryan Power »

Well, I'm going to be able to borrow a R12 guage set from a friend... hopefully it's just low on
coolent... but if it turns out the compressor is bad, does anyone have a used one I can buy?
I'm extreamily low on funds ATM, and I won't be able to drop $600 for a while.
Also... if it turns out the compressor is on it's way out, would it damage any other part of the system
if I manually bypass the cut off switch and force it on/off with a toggle?

-Ryan

At 07:53 AM 7/18/2001 -0700, you wrote:
>>>>
Hi-sounds like the problem I had with my 92`s coil on my ac compressor. You can`t get the coil seperate so the whole unit is needed. At 126k, it`s not unusual to need this as I replaced mine @ 150k. I`d keep the R12 as it`s cooler than the 134 & you avoid the extra steps necessary to convert. I felt as though I`d received good, lengthy service from my ac, so I bit the bullet & did it right. My interior is so cold now you could hang meat in there! Total retail cost (parts & labor) could be around $600, but well worth it-(that`s 2 car payments); good luck-ROD (No. AZ.)
----- Original Message -----
From: <mailto:rpower@colorado.net>Ryan Power
To: <mailto:BC-BFLegacyWorks@yahoogroups.com>BC-BFLegacyWorks@yahoogroups.com
Sent: Tuesday, July 17, 2001 12:56 AM
Subject: [BC-BFLegacyWorks] A/C Compressor Cycling

Hello.
I've recently been having a problem with the A/C Compressor cycling while the
A/C or Defroster is on. It will usually run fine initially, it's when it tried to come on
a second time that the problems occurs. What will happen is the compressor will
engage for 1 to 3 seconds, then shut off for 1 to 5 seconds, then attempt to engage
again. It'll usually loop like this 5 or 6 times, then stay off for around a minute, then
start the sequence again. Looking at the sight glass, with the compressor running,
I'm seeing no bubbles followed by what appears to be mist. I've been unable to see
any large (oil) leaks from any of the A/C tubing and the hoses appear to be in good
condition. Is it just low on coolant or is there a relay/power problem?
Also...
it appears I can convert this system (R12) to an R134a system, however, according to
the Subaru dealer here, it will require a system flush, a new drier, a new pressure sensor,
and new hoses and gaskets. (300+ for the equipment alone). If it does need coolant, should
I just put R12 back into it (at around $2.50/1oz) or should I just look into the conversion?
Or should I just save up and buy a newer Subaru with an R134a system? :)

Thanks for any help in advance.
-Ryan

P.S. Buying a new/newer used car really isn't an option.

To unsubscribe from this group, please send an email to:
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jonesboy@sunwave.net

A/C Compressor Cycling

Post by jonesboy@sunwave.net »

At 04:26 PM 18/07/2001 -0600, you wrote:
>Well, I'm going to be able to borrow a R12 guage set from a friend...
>hopefully it's just low on
>coolent... but if it turns out the compressor is bad, does anyone have a
>used one I can buy?
>I'm extreamily low on funds ATM, and I won't be able to drop $600 for a while.
>Also... if it turns out the compressor is on it's way out, would it damage
>any other part of the system
>if I manually bypass the cut off switch and force it on/off with a toggle?

Make me an offer on the one in my garage :) Only about 6,000km,
as previously stated. I ripped the A/C out to save weight and horsepower.

jonesboy@sunwave.net is my email address.

-=[Matt]=-


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acroxford@hypermall.net

A/C Compressor Cycling

Post by acroxford@hypermall.net »

If you manually bypass any of the switches DON"T DO IT FOR VERY LONG
if the radiator fans do not start and the pressure switch is bypassed
you can develop very high pressures on the high side very quickly and
a hose or something will blow. You can watch the gauges and shut it
down at 200lbs to be on the safe side if the fans are not running.




--- In BC-BFLegacyWorks@y..., jonesboy@s... wrote:
> At 04:26 PM 18/07/2001 -0600, you wrote:
> >Well, I'm going to be able to borrow a R12 guage set from a
friend...
> >hopefully it's just low on
> >coolent... but if it turns out the compressor is bad, does anyone
have a
> >used one I can buy?
> >I'm extreamily low on funds ATM, and I won't be able to drop $600
for a while.
> >Also... if it turns out the compressor is on it's way out, would it
damage
> >any other part of the system
> >if I manually bypass the cut off switch and force it on/off with a
toggle?
>
> Make me an offer on the one in my garage :) Only about
6,000km,
> as previously stated. I ripped the A/C out to save weight and
horsepower.
>
> jonesboy@s... is my email address.
>
> -=[Matt]=-


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acroxford@hypermall.net

A/C Compressor Cycling

Post by acroxford@hypermall.net »

Just remembered I do have a extra compressor but in the early years
they used at least 6 different mfg of compressors and the mounts seem
to be different for all of them.



--- In BC-BFLegacyWorks@y..., jonesboy@s... wrote:
> At 04:26 PM 18/07/2001 -0600, you wrote:
> >Well, I'm going to be able to borrow a R12 guage set from a
friend...
> >hopefully it's just low on
> >coolent... but if it turns out the compressor is bad, does anyone
have a
> >used one I can buy?
> >I'm extreamily low on funds ATM, and I won't be able to drop $600
for a while.
> >Also... if it turns out the compressor is on it's way out, would it
damage
> >any other part of the system
> >if I manually bypass the cut off switch and force it on/off with a
toggle?
>
> Make me an offer on the one in my garage :) Only about
6,000km,
> as previously stated. I ripped the A/C out to save weight and
horsepower.
>
> jonesboy@s... is my email address.
>
> -=[Matt]=-


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BC-BFLegacyWorks-unsubscribe@egroups.com



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