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Car Forum / Dodge / Dodge Cars / July 2006Dodge Dakota air conditioning quits when it gets warm
Hello, I have a 98 Dakota with a V6 and the air quits when it gets warm. I checked the pressure with one of those charger canisters with the gauge on it, it was a little low, but not much, it is fully charged now. The compressor cycles on and off and blows cold air until the truck gets warm then the clutch does not engage again unless the truck is shut off and allowed to cool. I temporarily bypassed the pressure cycle switch so the compressor runs constantly but the clutch still disengages, blows warm air and will not engage when the truck gets warm, (about 5-8 minutes). The radiator is full and both radiators are clean. Any help is appreciated. Thanks, George > Hello, > [quoted text clipped - 11 lines] > > George Nah, of all the people to find posting here! You don't post on the F1 ng do you? Trade it in! just kidding, you might have over charged it, not sure if it has a high pressure switch or not. It could have a bad relay or wire. I would say bring it in and have it looked at by a pro. >> Hello, >> [quoted text clipped - 16 lines] >it has a high pressure switch or not. It could have a bad relay or wire. I >would say bring it in and have it looked at by a pro. I agree it is liklley overcharge because a cheap gauge on the low pressure side of system is a poor way to charge the system because it does not give you a clue as to what is going on on the high side. ----------------- The SnoMan www.thesnoman.com > >> Hello, > >> [quoted text clipped - 20 lines] > pressure side of system is a poor way to charge the system because it > does not give you a clue as to what is going on on the high side. I had a similar prob, except the air cooling stopped to be replaced with warm air.... expert says that a vacuum line is blocked/broken and to check them all out, plus there are at least 2 one-way valves. If either fails it will default to warm air either at the heater or on the screen. HTH Molesworth  SignaturePosted via a free Usenet account from http://www.teranews.com >> Hello, >> [quoted text clipped - 17 lines] > sure if it has a high pressure switch or not. It could have a bad relay or > wire. I would say bring it in and have it looked at by a pro. A 1998 will have a high-pressure cutout switch, as should any factory r-134a system. It is required even on an r-12 to r-134a conversion because r-134a runs at higher pressure. The switch is likely saving your system from blowing the safety relief valve... which would be good. > Hello, > [quoted text clipped - 12 lines] > > George overcharged. High side pressure switch is shutting off the compressor. Recver all refrigerant evacuate system properly recharge with clean refrigerant start motor put air ON and make sure your electrial fan (rediator fan) comes on and stays on, now cooling OK? from Dido >> Hello, >> [quoted text clipped - 16 lines] > > High side pressure switch is shutting off the compressor. Or, bunch of air in the system. Good idea at this point to evacuate the refrigerant charge, vacuum out the air, and charge with a known weight of new refrigerant. SignatureChristopher A. Young You can't shout down a troll. You have to starve them. . "Creamy Goodness" <creamy_goodness@yahoo.com> wrote in news:J_GdnceFrYXU1CHZnZ2dnUVZ_qmdnZ2d@comcast.com: > Hello, > [quoted text clipped - 12 lines] > > George overcharged. High side pressure switch is shutting off the compressor. George, I have the same symptoms on a 98 Dakota V6. Curious if you had the problem before adding refrigerant. Assuming you've fixed the problem by now, what did the trick? Rick > Hello, > [quoted text clipped - 11 lines] > > George |
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