A/C Charge

[Vetteracerx]

Does anyone know how much 134a to put into a 1990 K5. Thanks

 

[y5mgisi]

First, did you already convert it to 134?

 

[scottystills]

My 88 came stock with 134a

 

[Vetteracerx]

Everything is new. My heater box is just missing the sticker.

 

[y5mgisi]

My 88 came stock with 134a

Im going to bet that it didnt. What makes you say it did?

Everything is new. My heater box is just missing the sticker.

Good! I would tell you but now that i think of it i cant. My burb has the rear air so it wouldn't work. Someone should chime in soon though.

 

[scottystills]

Im going to bet that it didnt. What makes you say it did?

Sticker on the fan shroud says R-134a. No idea if that's normal or not.

6.2s came with a different compressor, not sure if that would make a difference?

 

[y5mgisi]

Im fairly certain through my research that the first year R134a was used in any US vehicle was 92 or 93. I would have to bet that yours was converted. Most conversion kits come with a R134 sticker. But im intrigued to know if its real or not.

 

[scottystills]

Sorry was just editing when your post came up. I was mistaken, it was the sticker on the condenser not the shroud. Was going to grab you a pic but don't have a condenser anymore lol. You'd think I'd remember that before going outside.

Could be swapped after the fact, not sure. Was there when I got it anyway...

 

[y5mgisi]

Good enough. Just have to wonder about stuff like that. Specially with GM. Who knows what they were doing and when! Anyway, here is a lengthy but fun read about refrigerants.

http://www.allpar.com/eek/ac.html

 

[euzoa]

R/V Models 1.463 Kg (3 Lbs. 2 ozs.)

Says alldata, but it does say if that's r12 or r134a and the numbers probably wouldn't stay the same...let me go digging

 

[Vetteracerx]

R/V Models 1.463 Kg (3 Lbs. 2 ozs.)

Says alldata, but it does say if that's r12 or r134a and the numbers probably wouldn't stay the same...let me go digging

Perfect thank you