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2002 excursion Ac PLEASE HELP

Bradmperry on Sat July 18, 2009 5:05 PM User is offline

Year: 2002
Make: ford
Model: excursion
Engine Size: 7.3
Refrigerant Type: 134a
Ambient Temp: 95-98
Pressure Low: 35
Pressure High: 150
Country of Origin: United States

repair shop changed compressor, condenser, accumulator,orifice tube, blower motor, and eatc contol unit. They also added an electric auxillery fan, checked blend door and recirc door. The compressor and lines are cold and full of condensation yet the interior vent temp is in the 70's. When it is late at night and cool out(80's) the interior vent temp gets down to the low 60's but during the day it will not cool. Thanks in advance for any help.

fonebone on Sat July 18, 2009 5:50 PM User is offline

Those pressures at that ambient temps sure look like you are undercharged. Did you take those readings, or are they the readings the shop had? Look around this site at the FAQs, and note the pressures of R-134 at different temps. You should be higher. (Sure looks like the typical Ford blend door problem raising those vent temps,though)

Chick on Sat July 18, 2009 6:03 PM User is offlineView users profile

Low charge make sure they didn't fill it for a single air unit and you have dual air, or if they did it right you have a leak.. And they did fill it by weight I hope...

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Chick
Email: Chick

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Freedoms just another word for nothing left to lose

Bradmperry on Sat July 18, 2009 6:12 PM User is offline

These were the readings at the shop, but my buddy checked it this morning and they are same. the shop said the 134a was put in by weight.

Bradmperry on Sat July 18, 2009 6:35 PM User is offline

Should the compressor be cold and wet like it is or should it be warm to touch?

TRB on Sat July 18, 2009 9:22 PM User is offlineView users profile

Depends where you are getting to temp from. Compressor body will be hot while the suction line running into the compressor with be cold.

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