Apologies if this has already been answered, but according to the
owner's manual on my '70 Cutlass, the compressor stays on one the
controls are set to "AC" until you slide the lever all the way to
"OFF" or turn off the ignition. Until I read that, I thought that my
AC clutch relay was sticking, but it's done that way so that you can
run the AC compressor for dehumidifying air when using the defroster
(like many new cars do without telling you.)
Is this perhaps the case with your car? When you say you turn the AC
off, are you just sliding to vent or defrost, or are you going all
the way to OFF, then back to whatever you want?
krw
Date: Sat, 22 Jul 2006 21:13:37 -0400
From: "Marty McLeod" <[EMAIL PROTECTED]>
Subject: AC Question
I was hoping that someone with some knowledge on the AC system that
is on my
69 Vista could be of some help. I just had a new compressor
installed at
the local shop and had the system recharged. Today I found out while
driving that when I put the AC on, I can't turn it back off until I
turn off
the car. The compressor engages when it is supposed to from the
controls in
the car, but then it won't disengage until I turn the car off. I
tried
turning it off from the controls in the car and once it is turned
on, there
is 12 volt power going to the compressor until the key is turned off,
whether the I put the controls to AC or defrost or to heat. Is
this the way
the system is supposed to work, or do I have a relay of some sort
that is
bad or something else? Please help. I burned a lot of extra gas
today for
no reason while the compressor was engaged and didn't realize the
problem
until I got home. Also, I recharged it with the R-12a refrigerant
that is
compatible with new and old systems without changing seals and O-
rings and
it didn't seem very cool. I havn't stuck a thermometer in the
vent, but
what sort of reading should I be looking for with this
refrigerant. I have
heard it is no where near as cold as the original R-12 but was just
wondering what sort of temperature I should get out of the vent.
Thanks for
any help.
Marty McLeod
69 Cutlass S Convertible 455
69 Vista Cruiser
On digest mode, so I'm a little slow...
Kevin Wright
[EMAIL PROTECTED]
Dallas/Ft. Worth, TX http://
www.wankel.net/~krwright/cars/olds/70Olds.html
'71 Cutlass S for sale, less engine and trans: http://www.wankel.net/
~krwright/cars/olds/71_cutlass.html
Snoopy: 1970 Oldsmobile Cutlass S Sports Coupe - It wants to be a
W-31! And have EFI, 4-wheel discs, a 6-speed, a turbo or two... :)
...and a '71 Holiday Coupe less engine/transmission for sale - it'll
be parts if someone doesn't buy it!
