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94 Acc LX - A/C Expansion Tube?????

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Old Jul 19, 2012 | 11:05 PM
  #1  
skimom33's Avatar
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Default 94 Acc LX - A/C Expansion Tube?????

94 Accord LX 4-dr

Took the car to a mechanic/friend.

Pulled (vacuumed) out all the R134 that we had overfilled - or at least we THOUGHT we had overfilled - turns out its supposed to take up to 23oz, and we only put in 2 bottles.

The "whooshing" sound is gone, but the system will not circulate the R-134. Compressor IS working.

Low pressure is reading 0, even when the R-134 is replaced, but high pressure also drops to 0 when compressor initiates.

Mechanic is wondering if its the expansion valve assembly (if there is something clogging it).

Any suggestions on how to narrow that down?
 

Last edited by skimom33; Jul 19, 2012 at 11:17 PM.
Old Jul 19, 2012 | 11:14 PM
  #2  
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OoooppSS!!! Thats compressor, not condensor! So everything SEEMS to initiate to circulate the R-134, but its just not circulating.

And if its NOT the expansion valve, how do we find out which tubes it would be? Its there a way to diagnose this?
 

Last edited by skimom33; Jul 19, 2012 at 11:19 PM.
Old Jul 20, 2012 | 07:50 AM
  #3  
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Is the compresssor clutch plate engaging and turning? If not, no cooling can be obtained and an electrical problem is likely.

If compressor is engaging, but shutting down (Hi/Lo cutout switch will disable if too low), then a blockage is likley. Was receiver/drier replaced? Check for a cold receiver/drier. This would indicate big pressure drop across reciever/drier and blockage.

You may have to pull the evaporator and replace expansion valve if blockage is not in the receiver/drier.

good luck
 
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