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Pressure help

safado on Sat May 09, 2009 4:01 PM User is offline

Year: 2000
Make: Ford
Model: F350 Diesel
Engine Size: 7.3
Refrigerant Type: r134
Ambient Temp: 101
Pressure Low: 60
Pressure High: 300
Country of Origin: United States

Hello All,
I just purchased this truck.. the a/c blows mild cold at idle and so so while driving.. these pressures are at idle.. low side 55-60 and the high side 300-325 the high side gauge kinda wiggles a lil bit..

Its been a long time since I messed with a/c systems... Could it be over filled? some guidance would be appreciated

Chick on Sat May 09, 2009 5:02 PM User is offlineView users profile

The only way to know is have the system evacuated, recharge into the vacuum the correct amount. Check you pressures then, if the same, spray a "mist" of water on the condenser and if the pressures drop like a stone, it's an air flow problem, check the fan(s) for proper operation..Hope this helps..

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Chick
Email: Chick

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Freedoms just another word for nothing left to lose

safado on Sat May 09, 2009 5:18 PM User is offline

fans working good.. can't stop it once warmed up.. the condensor could use a cleaning as there are a bunch of bugs on it.. I'll try to find a place that will recover it... or if I can find a machine on CL or something.... with the compressor reach 350-400 at 1500 rpms it SEEMS like it is a charge or minor issue correct???

Chick on Sat May 09, 2009 8:03 PM User is offlineView users profile

Overcharge, (has it ever been worked on?) airflow problem (rises pressures) Obstruction on the high side will also raise high side pressures.. Do you know if refrigerant has ever been added?

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Chick
Email: Chick

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Freedoms just another word for nothing left to lose

safado on Sun May 10, 2009 1:04 PM User is offline

no I have no history on it... I need to find a place that will recover it for me.. here in phoenix... Or find a used machine...It would be nice to start messing with A/C stuff again...maybe even make some money on the side...

HECAT on Mon May 11, 2009 5:59 AM User is offline

A recommended shop in Phoenix

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