[shorod]

I will not be much help on the clockspring. I could probably get the service manual directions, but I haven't actually replaced on.

On the A/C though, replacing the cabin air filter would be a good start. They are not terribly expensive, and not terrible to replace. They filter the air coming into the cabin.

If the filter doesn't help the problem, then check your A/C condenser (in front of the radiator, and looks very similar to the radiator) for plugs due to debris in the fins. If you notice quite a bit of debris, use a hose to spray it out from behind (through the radiator). If a bunch of the fins are damaged, then you can attempt to have the fins straightened, or just get it replaced. Also make sure that the cooling fan comes on with the A/C. If the cooling fan is not running, that would definitely be a large contributor to why the systems cools sufficiently at highway speeds and not at low speed.

-Rod