Good Sam Club Open Roads Forum: AC Quits Blowing Cold after a few minutes
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 > AC Quits Blowing Cold after a few minutes

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ernie1

Sacramento,California,USA

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Posted: 05/02/22 11:06am Link  |  Quote  |  Print  |  Notify Moderator

After replacing the high and low pressure valves was the system evacuated? Not evacuating the system after opening it and exposing it to air, not having the proper equipment like gauges and not knowing the proper pressures at the ambient temperatures will cause all kinds of problems. Prior to the attempt to charge the system had it been open and exposed to air? If so, the drier needs to be replaced, the system evacuated and hope the expansion valve or maybe the capillary tube, not sure which you have, is not plugged and needs to be replaced.

* This post was edited 05/02/22 11:18am by ernie1 *

time2roll

Southern California

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Posted: 05/02/22 11:34am Link  |  Quote  |  Print  |  Notify Moderator

Best to have a professional get it working.


2001 F150 SuperCrew
2006 Keystone Springdale 249FWBHLS
675w Solar pictures back up

ernie1

Sacramento,California,USA

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Posted: 05/02/22 02:04pm Link  |  Quote  |  Print  |  Notify Moderator

Exactly my thought.

wa8yxm

Davison Michigan (East of Flint)

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Posted: 05/02/22 03:16pm Link  |  Quote  |  Print  |  Notify Moderator

adventureman5 wrote:

Thanks for the quick reply. Okay, if I didn't make myself clear, let me start again. This is the Chassis AC - the one installed by the Ford Chassis, not the roof mounted coach one. So this is the AC blowing out of the dash while you drive down the road.


Ah. well there are two types of Heater controls on vehicles. one is a simple air door that either directs air through the heater core or not. The other, far more common, is a water valve in the heater core line that lets hot engine coolant flow through the core.. or not.

And those valves can stick open.


Home was where I park it. but alas the.
2005 Damon Intruder 377 Alas declared a total loss
after a semi "nicked" it. Still have the radios
Kenwood TS-2000, ICOM ID-5100, ID-51A+2, ID-880 REF030C most times


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