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A/c Compressor Replacement - General

leboyd

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leboyd Enthusiast

leboyd

Posted
Posted

I plan on replacing my a/c compressor, accumulator and orifice.

 

My two primary mechanic sources both say it's no problem to not flush the system.

 

One says that since I'm not replacing the condensor or evap. I should only put 4 or 5 oz of oil in the new compressor, not the full 8oz. The reasoning is that the cond. and evap. will have oil in them, and putting a full 8oz will reduce the freon compacity, not allowing it to fully cool.

 

Anyone have an opinion on this?

 

If I decide to have the system flushed, how much should I expect to pay to have it flushed, vac-ed and refilled?

 

BTW, does anyone know where the orifice is on a '97 Tahoe - front air only, 4wd?

 

Thanks,

C & A s Dad Senior Enthusiast

C & A s Dad

Posted
Posted

Larry, if you have never taken any other advise off this forum, please do so this time. You have got to flush the system. I know of no compressor mfg reman or new that will warranty a comp without proof of flushing. But that is only one reason to do it. You do not want to do this job again and flushing it is one of the steps to making sure this does not happen.

 

There are aerosol flushes that work really well. We (CARQUEST) sell one but I am not at work right now to get you a part no. Reports are that it works very well and we even have some prof techs using it because they say it works better than the "prof" stuff they were using.

 

What kind of compressor are your going back with? What brand and are you using reman or new?

 

Whatever you do, please flush the system.

leboyd Enthusiast

leboyd

Posted
  • Author
Posted

Thanks for the advice. I will go ahead and flush the system.

 

Does anyone know where the orifice is?

 

Thanks,

  • 1 month later...
Butters Enthusiast

Butters

Posted
Posted

My compressor is shot on my 2001 Yukon XL 2500 6 L.

I have a shop telling me that I must replace the dryer as well for $129 or they will not warranty the compressor. Is this true or just an upsell?

Thanks

 

 

 

The orifice tube should be behind the right park light where the tubes go into the condensor.

Ron

C & A s Dad Senior Enthusiast

C & A s Dad

Posted
Posted

Jim, he is not just upselling you. The drier replacement and flushing is required for the warranty and is very necessary. On some Ford applications, many shops will not do this job without replacing the condensor and the hoses as well.

 

AC systems are not what they used to be and these steps are absolutely necessary to ensure the new compressor will hold up.

alvocado Enthusiast

alvocado

Posted
Posted

My compressor just failed in August and my local shop which I trust 100% flushed the system AND replaced the accumulator. They said it's mandatory and they've been in the busy 30 yrs. I paid about $125 for the accumlator (they sourced it.)

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