4lbs.. WOW. sure that is enough with all the evaporators you installed under each seat, door panels and on each outlet not to mention all those booster fans. I think you are way to low on refrigerant. But if the rest of us can sleep calmly at night now I suppose that is a good thing.
Hey funny guy! What up? Where you been all day??
Yeah 4lbs give or take......Three 1lbs cans, one 9oz can and a bit more of a 1lb can somewhere around 4lbs. I added a little refrigerant at a time, the temps kept dropping. I couldnt get a definitive answer as to how much it held. Everywhere I checked stated something differant.
---------- Post added at 12:09 AM ---------- Previous post was Yesterday at 11:09 PM ----------
Hey funny guy! What up? Where you been all day??
Yeah 4lbs give or take......Three 1lbs cans, one 9oz can and a bit more of a 1lb can somewhere around 4lbs. I added a little refrigerant at a time, the temps kept dropping. I couldnt get a definitive answer as to how much it held. Everywhere I checked stated something differant.
Napa, Tech choice and handfull of others all say 4lbs, then a this morning I seen this :
A/C COMPRESSOR REFRIGERANT OIL CHECKING
1998 GENERAL SERVICING
General Motors Corp. - Compressor Refrigerant Oil Checking
Chevrolet, GMC, Oldsmobile, Pontiac: Trucks/Vans
* PLEASE READ THIS FIRST *
NOTE: Always refer to underhood A/C specification label in engine
compartment or A/C compressor label while servicing A/C
system. If engine compartment/compressor label specifications
differ from specifications in this article, use
underhood/compressor label specifications.
REFRIGERANT OIL & REFRIGERANT CAPACITY SPECIFICATIONS
NOTE: DO NOT exceed A/C system refrigerant oil capacity when
servicing system.
REFRIGERANT OIL & R-134a REFRIGERANT CAPACITY TABLE
(1) Oil Refrigerant
Application Ounces Ounces
"C" & "K" Series
Pickup & Sierra .............. 8.0 ................ 32.0
Crew Cab & Utility ........... 8.0 ................ 36.0
Suburban, Tahoe & Yukon
With Rear Unit ............. 11.0 ............... 64.0
Without Rear Unit ........... 8.0 ............... 36.0
(1) - Total system capacity, unless otherwise noted. Refer
to underhood A/C specification label in engine
compartment for specified oil type.
(2) - Refrigerant oil and/or refrigerant capacity not
available at time of publication. Refer to underhood
A/C specification label in engine compartment.
REFRIGERANT OILS
NOTE: Use ONLY the specified oil for the A/C system or compressor.
Always check the underhood A/C specification label or A/C
compressor label before adding refrigerant oil to A/C
compressor/system.
Use only NEW, moisture-free refrigerant oil in A/C systems.
Refrigerant oil is highly refined with a very low moisture content.
Oil container must be tightly closed when not in use, or moisture from
air will be absorbed into refrigerant oil.
Refrigerant R-134a systems use Polyalkylene Glycol (PAG)
refrigerant oil. Using a mineral oil based lubricant with R-134a
systems will result in A/C compressor failure due to lack of proper
lubrication.
All compressors have different lubrication requirements and
use different Polyalkylene Glycol (PAG) refrigerant oils. Use only the
specified PAG refrigerant oil for the appropriate system and A/C
compressor. Always check the underhood A/C specification label or A/C
compressor label before adding refrigerant oil to A/C
compressor/system. The following types of R-134a refrigerant oil are
currently available.
General Motors
On all models except Saturn, use PAG Refrigerant Oil (Part
No. 12345923). On Saturn, use Saturn PAG Refrigerant Oil.
NOTE: PAG oil absorbs moisture very rapidly, 2.3-5.6 percent by
weight as compared to a mineral oil absorption rate of .005
percent by weight.
SERVICING PRECAUTIONS
DISCHARGING SYSTEM
Discharge A/C system, using approved refrigerant
recovery/recycling equipment before loosening any fittings. Follow
refrigerant recovery/recycling equipment manufacturer’s instructions.
DISCONNECTING LINES & FITTINGS
After system is discharged, carefully clean area around all
fittings to be opened. Always use 2 wrenches when loosening or
tightening fittings. Some refrigerant lines are connected with a
spring-lock coupling. Special tools may be required to disconnect
lines. Cap all openings as soon as lines are removed. DO NOT remove
service valve caps until ready to connect lines and fittings.
NOTE: All R-134a based systems use 1/2-16 ACME threaded fittings.
Ensure all replacement parts match the connections of the
system being worked on.
Like I said in the other post I kept adding a little at a time and sure enought its 4lbs.
