Posted: 8/21/2015 11:14:51 PM EDT
|
Trying to decide if it is a good idea to get a r134a retrofit condenser and a new drier/accumulator along with r134a retrofit kit. Then fill with Redtek 12a or Freeze 12, or regular r134a or let a shop handle the r12? I've read the GM bulletins and several guides about it, but am still unsure. |
|
Depends on the compressor. When I was big into Fieros they came with 2 or 3 different compressors (so notice my info Is limited and older) the one type couldn't handle the higher pressure while the other one could. You were also supposed to adjust the high side pressure switch to account for the higher pressure cut off also. If you are buying a new compressor to get tested warranty you need to change out some of the parts you listed.
I haven't heard of anyone having to change the evaporator or condenser as you were saying. The retro fit kit I believe is only a low side adapter and newer gaskets right? |
| I spent a lot of time and money retrofitting my 1989 suburban to r134. That R4 compressor simply cannot handle the pressure. Rebuilds are particularly weak but I went with two new GM units and they both failed within months. if you want to stick with 134 you must upgrade to a Sanden compressor, barrier hoses additional fans and a parallel flow condenser for acceptable results. I would strongly recommend sticking with R12. Not sure about compatibility with oil the Sanden will likely be filled with but if you can I would get rid of that POS R4. |