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post #1 of 4 (permalink) Old 10-19-13, 05:34 PM Thread Starter
kutcha05
 
Join Date: Nov 2009
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To flush or not to flush?

Hi all,

I have a 1999 Mercury Grand Marquis and I am trying to decide if i should get it flushed or not. I disconnected a part of the ac system about 4 years ago and forgot to vacuum out the system before adding freon. After a while the compressor seized up on me and i put a bypass pulley on since i couldnt afford a brand new compressor from the parts store. Now i found ac kits online for the same price as the compressor by itself in the parts store. I did not plug the two openings for the hoses that connects to the compressor. The compressor has been off for 4 years. Should i have the system flushed before installing the new components or will it be ok?

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post #2 of 4 (permalink) Old 10-19-13, 06:27 PM
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Re: To flush or not to flush?

Not sure on the flush but a new filter/drier for sure.
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post #3 of 4 (permalink) Old 10-19-13, 08:56 PM
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Re: To flush or not to flush?

As JWKO said, new filter-drier. Also, the flush would help. You may end up having to evacuate it and re-flush it in a year or two and maybe a TXV replacement. Contaminants from oxidation and moisture tend to come back to haunt you quite a bit in an AC system. If you don't have the capability to do it yourself, it might be worth considering a system replacement and bite the bullet in one shot. If you can do it yourself, don't be surprised if you have to go back in.

Ever notice that there's so many high performance parts available for GM products?

Did you ever think that maybe they NEED them?
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post #4 of 4 (permalink) Old 10-20-13, 08:07 AM Thread Starter
kutcha05
 
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Re: To flush or not to flush?

Thanks guys. I was going to install the new orfice tube, drier, and compressor myself after having it flushed (if needed). Then i was going to vacuum the system and charge it myself to try and save money. I may just have to let a shop do it all. It would have been better if a put another compressor on ther as soon as i took the old one off.
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