2000 ram a/c issue help
#11
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If you go from one extreme to the other, I think you should hear the door thump on it's stops..... (and you should hear it whether the engine is running or not......) aside from that, I would imagine it's pretty friggin' quiet. If it's just the little coupler feller, you don't have to pull the dash to fix that.
#12
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Adding refirgerant to a system without a vacuum does not allow sufficient refrigerant into the system.
Take a look at this video:
<iframe width="420" height="315" src="http://www.youtube.com/embed/WblfmWnFPEc" frameborder="0" allowfullscreen></iframe>
Take a look at this video:
<iframe width="420" height="315" src="http://www.youtube.com/embed/WblfmWnFPEc" frameborder="0" allowfullscreen></iframe>
#13
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Adding refirgerant to a system without a vacuum does not allow sufficient refrigerant into the system.
Take a look at this video:
<iframe width="420" height="315" src="http://www.youtube.com/embed/WblfmWnFPEc" frameborder="0" allowfullscreen></iframe>
Take a look at this video:
<iframe width="420" height="315" src="http://www.youtube.com/embed/WblfmWnFPEc" frameborder="0" allowfullscreen></iframe>
#14
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When it freezes up, the liquified refrigerant cannot pass through the sytem as evaporator may also freeze up. Adding refrigerant at atmosphere allows only about 30% charge (depening on temp and humidity - but that's too technical to explain, and it has been WAY too many years since I let my HVAC license lapse). But if the system is low enough (which I am betting it is), no cool air wiil come out.
Gotta have a vacumm before charge. Not going to work without sufficient charge, and cannot get sufficient charge without vacuum. And somehow need to find why refrigerant leaked out - or it will leak again. Costs about $1 an ounce if I recall correctly.
Gotta have a vacumm before charge. Not going to work without sufficient charge, and cannot get sufficient charge without vacuum. And somehow need to find why refrigerant leaked out - or it will leak again. Costs about $1 an ounce if I recall correctly.
#15
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that was an interesting video but i did not have the nice guages i just used the one that came with the can lol that has always worked in the past i looked on that website heatertreater i guess ill pull that little black box off and see if its that peice that broke i hope its something simple thanks guys
#16
#17
#18
#19
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Mode door is the one that controls which vents the air comes out of. There's a couple other doors in there as well.
#20
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There is a blend door and a mode door. If doors are out of whack, you will be blowing air throught the wrong coil - heat instead of cool.
I cannot remember the capacity, but with adequate vacuum pulled, 12 oz of refirgerant will have about 0 lbs of pressure. It then goes up from there with more added. More pressure won't help - the air cannot be in the system. It takes up space for refirigerant.
I cannot remember the capacity, but with adequate vacuum pulled, 12 oz of refirgerant will have about 0 lbs of pressure. It then goes up from there with more added. More pressure won't help - the air cannot be in the system. It takes up space for refirigerant.
Last edited by gdstock; 03-20-2012 at 11:29 AM.