Automotive Air Conditioning Information Forum (Archives)

Provided by

We've updated our forums!
Click here to visit the new forum

Archive Home

Search Auto AC Forum Archives

Flush & R134a Service Question

scusack71 on Mon July 20, 2009 6:14 PM User is offline

Year: 1998
Make: Dodge
Model: Intrepid
Engine Size: 3.2
Refrigerant Type: R134a
Ambient Temp: 75
Country of Origin: United States

I bought the HECAT Pulsator to initially flush my A/C system while the engine is out.

I plan to "pulsate" the evaporator and condensor and lines. I plan to replace the resevoir, expansion valve and all o-rings with the kit I purchased.

I found some corrosion under the suction line clamp and think I should replace it (some pits seem deep, but not 100% sure how thick the material is).

1st Question: Either way, should new lines or any new exchanger components be flushed? I wasn't sure if they were originally packaged clean/dry/capped when new.

I rebuilt the compressor last winter and have the ports all sealed up so no air could enter the chambers (except the little amount of air in the compressor when closed up). I only used very thin amounts (towel applied) of R12 mineral oil during assembly for coating the teflon pistons, cylinders, slosh plate and reed plates/valves. I also used NYLOG sealant for all orings and seals, etc.

2nd Question: Is it ok that I haven't serviced any PAG Oil into this compressor yet since rebuilding it this last winter? And can I perform the oil servicing the same way the manufacturer describes in the service manual i.e. service full oil capacity through suction side of compressor during assembly and leave the rest of the system dry. The manual also describes that the compressor will disperse the oil to all components from the compressor as needed. Let me know if this is the typical way to do it rather than filling each component with the prescribed amount as would this would be performed if replacing a single component(s).

Thank you for your help.

TRB on Mon July 20, 2009 9:04 PM User is offlineView users profile

1. If i is new no need to flush.

2. Oil in suction port is fine. But if it has a oil sump with plug I like putting the oil in there first.


When considering your next auto A/C purchase, please consider the site that supports you:

scusack71 on Mon July 20, 2009 9:23 PM User is offline

It's a 10PA17C. I don't recall it having a sump plug. Thank you for the advice TRB.

Edited: Mon July 20, 2009 at 9:26 PM by scusack71

scusack71 on Mon July 20, 2009 9:25 PM User is offline

I'm going to use the Pulsator this weekend... I'll fill you all in afterwards

Edited: Mon July 20, 2009 at 9:27 PM by scusack71

Back to Automotive Air Conditioning Forum

We've updated our forums!
Click here to visit the new forum

Archive Home

Copyright © 2016 Arizona Mobile Air Inc.