Expansion Valve Replacement

Tiny
HFREE1057
  • MEMBER
  • 2006 PONTIAC G6
Air Conditioning problem 6 cyl Front Wheel Drive Automatic 52000 miles

A local technician diagnosed my less than adequate AC problem as a bad expansion valve. He is telling me that the evaporator must be replaced with the expansion valve. Is this true?

Total repair cost of $800. The expansion valve costs between $60 - $80 from on-line stores.
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Wednesday, September 1st, 2010 AT 12:38 PM

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Tiny
SATURNTECH9
  • EXPERT
Unless the evaporator is damaged in some way like where the expansion valve bolt's up or he say's there is some kind of restriction in it then i don't see why those would be a matched pair to have to replace both of them at the same time.Ask him why he has to replace the evaporator core and let me know his reason and i will tell you what i think about it.

Usually you need to replace the compressor with the expansion valve is that what he meant?

Here are some guides to help see whats going on.

https://www.2carpros.com/articles/re-charge-an-air-conditioner-system]

and

https://www.2carpros.com/articles/replace-air-conditioner-compressor

Please let us know what happens.

Cheers,
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Wednesday, September 1st, 2010 AT 2:14 PM
Tiny
HFREE1057
  • MEMBER
Thanks for the fast response.
I spoke with the technician again and the story changed somewhat. He stated that the receiver/dryer assembly must be replaced when the system is opened to replace the expansion valve. He also stated on the Pontiac G6 the receiver/dryer is integral to the condenser which costs approximately $200. He stated that parts/refrigerant for this repair are approximately $270 and the remaining $500 is for labor at approximately $73/hr. Must the receiver/dryer assembly be replaced? He stated that if it were not, trash would likely flow into the new expansion valve.
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Wednesday, September 1st, 2010 AT 3:12 PM
Tiny
SATURNTECH9
  • EXPERT
I don't see how the dryer is going to blow trash into the expansion valve unless something came apart inside the a/c system which that doesn't seem to be the case. General rule of thumb is when you replace a bad compressor you would want to replace the dryer because debris from the compressor get into the dryer. But for a expansion valve replacement I think that is over kill and a expensive repair for you. That doesn't seem like a good enough reason to replace the dryer especially since it's part of the condensor and so expensive part's and labor wise to replace.
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Wednesday, September 1st, 2010 AT 6:52 PM

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