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Bad condenser - best practices question

knkreb on Sun April 26, 2009 9:35 PM User is offline

Year: 2001
Make: Pontiac
Model: Aztek
Refrigerant Type: 134a

Well, the in-laws a/c in their car is not working. Found good size stone took out condenser and knocked a sizable hole in it. It has been that way throughout the winter.

So, here is the best practices question: system has been "open" to the atmosphere for x-amount of time, exposed to all sorts of elements. How best to clean up/dry out? Changing the accumulator/etc and good vacuum gonna cut it? Or will I have to pull the compressor too? (for dumping the oil and refill with fresh to hope to keep the system dry?)

Thoughts?

Thanks!

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You must have all the clues for an accurate diagonsis.

Matt L on Sun April 26, 2009 9:57 PM User is offline

I would think that flushing it would be prudent. The factory oil is probably not end-capped and will react with moisture, which they do have in the system.

GM Tech on Sun April 26, 2009 10:19 PM User is offline

You'll get the new Receiver/Dehydrator (not accumulator) with the replacement condenser- if you buy from a reputable dealer...it mounts to the condenser..

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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......

TRB on Sun April 26, 2009 10:33 PM User is offlineView users profile

Tough call, PAG attracts moisture so if the system has been open to the point that the PAG could have absorbed a fair amount? It would be wise in my opinion to remove as much oil as possible. New drier is supplied with the condenser we offer.



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When considering your next auto A/C purchase, please consider the site that supports you: ACkits.com
Contact: ACKits.com

GM Tech on Mon April 27, 2009 9:28 AM User is offline

Right photo of condenser- but it is upsidedown-and backwards- the "blank" in the mounting hole is always on passenger side bottom- and the R/D is on driver's side- with inlet manifold on the bottom....view is of engine side of condenser as shown....just needs turned 180.

Tim- May help folks identify their units- for a perfect match if you vertically rotate that puppy 180 degrees that image.....just a thought- seems like little things like this bother me-- must be a mindset.. the maker of that image had a choice of how to photograph it-- why not make it like it is mounted in the van?

-------------------------
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......

TRB on Mon April 27, 2009 10:56 AM User is offlineView users profile

Better?



-------------------------

When considering your next auto A/C purchase, please consider the site that supports you: ACkits.com
Contact: ACKits.com

GM Tech on Mon April 27, 2009 11:13 AM User is offline

Actually- here is the proper view- you needed to rotate it 180...I mislead you on the backwards part....sorry



-------------------------
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......

Edited: Mon April 27, 2009 at 11:16 AM by GM Tech

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