A/C Compressor Cycling
Posted: Tue Jul 17, 2001 3:52 am
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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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:
BC-BFLegacyWorks-unsubscribe@egroups.com