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2005 F-250 Vent Temps?

jed1154 on Wed April 30, 2008 10:14 AM User is offline

Year: 2005
Make: Ford
Model: F-250
Engine Size: 6.0 Dies
Refrigerant Type: r134a
Ambient Temp: 73

I have no put a set of gauges on my truck, but i am thinking its just not quite cold as it should be. I can get the vent temperature down to about 48-50 when driving....and thats on max ac, recirc after about 30 mins of driving. After 40 mins of driving it will creep down to about 44, and if i sit in the parking garage i can get it down to 42. This is with outside air of 70-74 degrees. I have nothing to go on except that my wife's truck, an f-150 with 110,000 miles readily gets to 38 degrees and stays at 40-42 while driving.

I would figure mine should do that well.

iceman2555 on Wed April 30, 2008 1:22 PM User is offlineView users profile

First step would be to evaluate the system for proper recharge. Suggest to have the system serviced, recover, evac and recharged to OE specs. Post pressures and temps....sure a flood of info will follow. Pressures alone are not always indicative of a fully charged system...so get the unit back to proper recharge and let us know.

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The strongest reason for the people to retain the right to keep and bear arms is, as a last resort, to protect themselves against tyranny in government.
Thomas Jefferson

jed1154 on Wed April 30, 2008 2:06 PM User is offline

ill try to do that. Im taking it in. I just didnt know if you could tell anything from the vent temps. I hate to take it in if 46 degree at the vents with 70 degree ambient is what it is supposed to be.

Edited: Wed April 30, 2008 at 4:07 PM by jed1154

iceman2555 on Wed April 30, 2008 4:37 PM User is offlineView users profile

Really depends upon the method to determine the differential of ambient temp to vent temp. For some test, the difference of 24 degrees could be considered 'minimal', however consider the ambient temp and there is insufficient ambient temp to adequately 'load' the system.
The first and most important bit of knowledge to adequately diagnosis a system is to know how much refrigerant is in the system and the system is properly recharged.


-------------------------
The strongest reason for the people to retain the right to keep and bear arms is, as a last resort, to protect themselves against tyranny in government.
Thomas Jefferson

jed1154 on Thu May 01, 2008 11:48 AM User is offline

I have some others with this truck saying 42-50 is 'as good as it gets'. Being my only vehicle, im not sure its worht messing with.

jed1154 on Sun May 04, 2008 10:02 PM User is offline

[quote]however consider the ambient temp and there is insufficient ambient temp to adequately 'load' the system. [/quote]

OK, so you are saying that if its blowing at 42 with ambient temp at 70 then its not enough load to tell, whereas if its blowing at 42 with ambient temp at 90 or 95, then its likely that its OK?

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