Prin

After driving my car for about 45 minutes with the AC on, it stops blowing as hard. If I turn the fan on high, you can hear the fan blowing, but the air just doesnt come out as hard. So, I popped the hood and noticed that my dryer has ice on it!. What does this mean? If I let it sit for a while, then turn the AC back on, it blow out on high until it freezes again...

Haans249

iTrader: (24)

Be happy it blows so cold! Otherwise, I don't know what to tell ya. Too much moisture I would assume.

cam

iTrader: (9)

Pull your rad shroud off and check for a bag or some restriction between the condenser and the rad. Pressure was the condenser. If that doesn't do it you have too much refrigerant in the system

01ssreda4

iTrader: (96)

check freon level and other obvious stuff first.

2001NBMZ28

Check the charge, bet you're low on referigerant and the evaporator is icing up too.

blownws6_nc

iTrader: (10)

could be the dryer also.

Prin

Well, the freon is just right, so, I will be checking other stuff.

cam

iTrader: (9)

BTW thats pressure WASH the condenser man sorry to confuse

iowackers

iTrader: (2)

If the dryer and / or evaporator are freezing up it is because:
1. You are low on freon.
2. The orifice tube is plugged and not letting enough freon through it to the evaporator side.
3. The pressure switch is bad and not allowing the compressor to cycle when the low side pressure gets too low.

The condensor being plugged will not cause the dryer to freeze up. It will cause the system to not blow cool air at all.
My 2000 Sierra PU did this same thing after running the AC for 30+ minutes. My problem was a plugged orifice tube. Easy fix if you have an AC cart. If not you will have to have someone with an AC cart evacuate the system, replace the O tube, vacuum system down, and then recharge. Good luck.

Scott

MikeG

iTrader: (33)

Mine does the exact same thing. I'll be following this closely to see what works for you.

Prin

Woot! Took it to the shop and found out that we had put too much freon in it. So, we drained it and now it is perfect! We had around 40 lbs. in it and we drained it to 34 lbs.

MikeG

iTrader: (33)

So 40 lbs is too much? I checked mine today with one of the little gauges that comes on the recharge kits and it read 44-45. How do I let some out?

Prin

Well you can push the button on the dryer to let some out. My mechanic had some sort of machine that he did it with.