Would anyone here know the 134a fill capacity of a 2008 3.7 I5 z71 Chevy Colorado. The label under the hood is not there and the web is giving me all different fill capacities. Thank you.

Does anyone know the reason why GM used the rubber ball design instead of an old faithful schrader valve design. I see aftermarket companies make a schrader valve design to replace the OEM ball. Before installing aftermarket parts on a vehicle, I wanted know the reason behind this change. What has m...

1999 saturn sl2 Idle temps blower on high speed only produce 60 degrees vent temps with 90 degree ambient. The car could be on the freeway and then vent temps get in to the low 40's but once the car stops the vent temps climb to an uncomfortable temp. Idle low psig 45--- high 185 psig-- 58 degree ve...

If you had to charge a custom 134a system would you use sub-cooling for a txv and super-heat for an orifice system? Have a few custom made systems which need to be looked at. Trying to figure out the best method for the correct charge.
Thank you for the help

Need to change a condenser in a 99 Saturn. Have some double ended cap pag 100 from about 10 years back. It was opened once and then sealed back up. Never open again. Think it is still good? I know it is cheap to buy a new bottle but I have it here in my hand. If, it is still good why buy more.

Was looking at a 1999 Saturn S-series today. It was about 75 Degrees outside. With the windows open, fan high, recirculate on and the car idling the vent temp was about 50 degrees. Suction line to the compressor was cool but not cold and sweating. Did not get a chance to hook up gauges to get pressu...