Automotive Air Conditioning Information Forum (Archives)

cled on Tue September 10, 2013 8:06 PM

Year: 2007
Make: Honda
Model: Odyssey
Engine Size: 3.5l
Refrigerant Type: 134
Country of Origin: United States

The van is blowing hot air but the compressor is working fine.Had the system vented and tested for leaks and there were none. Had it recharged and the high side readings were said to be good/normal(good), the low side reading was said to be extremely high and I was told there is a blockage somewhere. I put in a new expansion valve( front one, this van is said to have a rear as well) and a new condenser. I had the system recharged today. The high side reading was fine my mechanic said but, like before, my low side reading was way to high and he said there is still a blockage somewhere. When I changed the expansion valve it was clean without corrosion and the only reason I replaced the condenser was I sheered off a bolt in a connecting point. The heater blows hot air just fine but the ac won't work, it just blows warm air. Any suggestions would be greatly appreciated.

Chick on Tue September 10, 2013 10:50 PM

Is it possible to post the pressures, both high and low? Also feel the suction line going back to the compressor, is it cold? did you change the rear ex-valve? was the system flushed thru the expansion valves? give as much information as you can..Also feel the lines going into and out of the drier, are they the same temp or is one cooler... hope this helps..

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Chick
Email: Chick

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Freedoms just another word for nothing left to lose

mk378 on Tue September 10, 2013 11:55 PM

Blockage causes a low low side, unless the blockage happens to be in between the low side service port and the compressor. Typically a high low side means the compressor is not pumping well, either it is worn out or it is a variable displacement unit stuck at zero displacement.