how can you bypass compresser

jfranciose on Wed June 08, 2011 8:53 AM

Year: 1997
Make: buick
Model: laseber custom
Engine Size: 3.8
Refrigerant Type: 134a
Country of Origin: United States

if compresser is not comming on due to low freon how would you get around to filling freon compresser and all parts are new

mk378 on Wed June 08, 2011 9:46 AM

Don't start new threads about the same problem, don't call R-134a "freon", and don't "bypass your compressor".

jfranciose on Wed June 08, 2011 10:45 AM

excuse me for sayng freon i guess its a girl thing so sorry also im not stupid i know you cant bypass a compresser what im asking is how to fill compresser with r134a if its to low for compresser to cut on . its in the green with half can of r13 if i add anymore it will be in the red now do i need shop to fill it or is there a way to do this myself thank you

Cussboy on Wed June 08, 2011 2:34 PM

OK. We don't recommend adding refrigerant without using a set of gauges for both low and high side pressures. That technique can usually get one close.

However the best way is to evacuate and fill by weight (e.g. at a shop). But since it is likely your refrigerant has leaked out, the leak needs to be fixed or the added refrigerant will leak out as well.

GM Tech on Wed June 08, 2011 2:36 PM

Compressor comes on when the refrigerant is added...no need to bypass anything.

-------------------------
The number one A/C diagnostic tool there is- is to know how much refrigerant is in the system- this can only be done by recovering and weighing the refrigerant!!
Just a thought.... 65% of A/C failures in my 3200 car diagnostic database (GM vehicles) are due to loss of refrigerant due to a leak......

jfranciose on Wed June 08, 2011 5:49 PM