A/c 1998 Escort Zx2 Overpressurized?

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  #1  
Old 06-16-05, 11:25 AM
pattingtonjbear
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Red face A/c 1998 Escort Zx2 Overpressurized?

My a/c will not turn on in my car so I went out an bought a recharger kit to test the system and add coolant. To my surprise rather than the pressure in the system reading out low (around 10 - 20 psi) it was reading out at 70 - 80 psi. I checked to make sure it was on the right end of the system too and it was . So any idea of what could be causing the problem or how it could be fixed as I dont fancy paying 500$ to get it fixed. Thank you.
 
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  #2  
Old 06-16-05, 11:32 AM
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Was this the static pressure or was the engine running with the compressor engaged?

70-80 psi sounds rather high for static pressure. If that's the case, then your problem is not low refrigerant.
 
  #3  
Old 06-16-05, 04:41 PM
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70-80 is not uncommon for static pressuer on the high side (static-car not running) I have also seen cars where it is that high "static" on low side, sounds like an obstruction.
 
  #4  
Old 06-16-05, 09:20 PM
pattingtonjbear
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Question

It was while the engine was running w/ the a/c engaged.

Obstruction as in something is blocking the air flow?
 
  #5  
Old 06-17-05, 03:50 AM
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suggest you spend 30 to 50 bucks and take it to a shop to atleast have it diagnosed the pressure reading of the low side without the high side reading is pretty useless information.
 
  #6  
Old 06-17-05, 08:59 AM
pattingtonjbear
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Any other suggestions?
 
  #7  
Old 06-17-05, 09:06 AM
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Clarify something - in your original post you stated that the "a/c will not turn on." You have since stated that the low-side pressure reading was taken with the "a/c engaged." Which is it?
 
  #8  
Old 06-18-05, 03:30 PM
pattingtonjbear
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You can turn the dial on the inside of the car to max a/c but only warm air will come out. So the a/c was engaged but only warm air comes out.
 
  #9  
Old 06-18-05, 04:13 PM
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Yes, but is the clutch engaged/compressor turning?
 
  #10  
Old 06-19-05, 08:13 PM
pattingtonjbear
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Yes it is.
 
  #11  
Old 06-20-05, 07:41 AM
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With no further info, that reading with the compressor turning brings 2 things to mind immediately - compressor has failed and isn't pumping, or a low-side restriction. Bare minimum, you need a high-side pressure reading. Take bejay's advice and get it to a shop.
 
  #12  
Old 06-20-05, 10:51 AM
pattingtonjbear
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I might end up doing that, thanks for the help.
 
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