2nd Gen Non-Engine/Transmission A/C Problems

[TLampton]

Ok first things first, I remember my AC used to blow fairly cold before. The truck has been sitting alot for the past year or so (since I carpool into Houston now) So i was driving it recently and it just didnt have the same feel as before, i bought one of the refill kits from the local autostore, and that helped for about a week. Then right back to blowing warm air. I have done some searching around and i hope to look at the blower box this coming up weekend, and make sure its clear and also check into a good AC shop near me to check the system for leaks and flush/refill. Any other advice to try?



Now for my main question. I noticed when working under the hood the other day, all of my connecting joints on the Vacuum line are dry-rotting... For example the connection at the Vaccum pump, the connection up at the firewall, etc. They are also really soft to the touch, i would figure any vaccum would cavitate these in a moment. Now where do you buy new ones of these?



Thanks



2002 Dodge RAM 2500 4x4 Quad Cab - 98000 miles

 

[kenny61]

I always confuse the two but the evaporator or whatever that is in the box in the dash is common to leak I did mine a few years ago

 

[TLampton]

would it only leak when the vehicle is running?

 

[Batphreak]

Yes, Evaporator is in the dash, Condenser is in front of the radiator. Easy way to remember (for me at least) Evap is where you are using "heat" (energy) from the air to evaporate the refridgerant, thus making the air colder because you've put that heat into the refridgerant. The condenser is the opposite, putting the "heat" back into the air outside the cab of the truck and condensing the refridgerant back to a liquid.

The evaporater will leak when the truck isn't running because the system is always under some pressure, there is just more pressure when it's running.

 

[Shelby Griggs]

Mine turned out to be the compressor seals, quite common according to the AC guy who repaired my AC this summer. No doubt you have a leak, once that is fixed you will be blowing cold again. My guy had an electronic sniffer, took him about 30 seconds to determine what the issue was, the dealer had previously added a dye to the system twice and still couldn't find the leak.



SHG