Quote:

Quote:

(make sure you have oil in the system first)



This part always confused me. Is there actually oil in the lines? or you just talking about oil in the compressor?



Oil is carried through the system with the refrigerant, when off it settles in the low spots of the system.

Most systems have a spec for total oil amount and its not unusual to have a spec for amounts in individual components.

If changing out one item (compressor lets say) its usually recommended to drain it out and note how much oil was drained.

Install the new compressor and add the same amount in new oil.

Other times it boils down to a WAG depending on how compromised the system was. Really crapped up systems (Caravan's with bad compressors and dual evap's anyone?) are best left to the pros.



"I think its got a hemi"