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Refrigerant capacity

70monte on Fri February 13, 2009 9:39 PM User is offline

Year: 2008
Make: Chevrolet
Model: Trailblazer SS
Engine Size: 6.0L
Refrigerant Type: R134
Country of Origin: United States

A friend of mine has a 2008 Chevy Trailblazer SS with the 6.0L. He had some performance work done to the engine and whoever did the work had to discharge the AC to do it. It was done in a different state then the one we live in. He wants me to recharge the system.

Does anyone know what the refrigerant capacity is for the Trailblazer SS? We looked under the hood but could not find any stickers that gave the capacity of the AC system. Is there anything special to know about the system in this truck? Where is the charging port on this vehicle Thanks for any info.


mak11 on Sat February 14, 2009 1:46 PM User is offline

Try this,

TRB on Sat February 14, 2009 10:12 PM User is offlineView users profile

Single air = 1.9lbs

Dual Air = 2.65lbs


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70monte on Sun February 15, 2009 11:52 AM User is offline

Thanks for the info guys.


70monte on Wed March 25, 2009 4:48 PM User is offline

I finally was able to get this vehicle recharged yesterday. This Trailblazer had the duel air. I was getting 40 degree vent temps with low side pressure around 28-29 and high side at about 150. Outside temp in my garage was around 59-60 degrees. My friend didn't want to change out the accumulator even though the system was open for a couple of days while the engine modifications were being done.

I figure the system had quite a bit of moisture in it because my vacuum pump oil got pretty cloudy fairly quick. It was the worst I had seen it in the five vehicles I have used it on. I change the oil in the pump after every use.

I guess we will see if his vent temps stay down when it starts getting hotter out.


iceman2555 on Wed March 25, 2009 9:33 PM User is offlineView users profile

If this system was recharged in a manner that did not weigh the amount of refrigerant being introduced into the system.... a suggestion would be to recheck charge level once the ambient temp nears the 80 degree mode. It may be necessary to 'balance' the charge rate. At the ambient temps is almost impossible to make the AC system work....get it heat loaded and then recheck the system.

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70monte on Fri March 27, 2009 5:51 PM User is offline

I did weigh the amount. I will recheck everything when it warms up. My friend wanted it done now and is why I did it when I did. It also was warmer when I started but it started cooling off by the time I got to the recharging.


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