Have who ever did the work on the vehicle recently check it over. They may have acidentally disconnected something to cause your problems.
It would be wise to do so if you are having overheating problems.
Try having the throttle body cleaned.
Getting stuck in the snow and having your engine overheat is a very bad idea. You should turn the car off, let the engine cool, and call for a tow truck.
Obviously your engine should not overheat with simply turning on the AC so this would indicate that you are having problems with your cooling system. When the AC is turned on there becomes another drag on the engine due to the AC compressor being driven by the serpentine belt. I'd recommend checking your antifreeze level and looking to see if you have a leak from the radiator or a hose. Several other things to think about in relation to engine overheating are a stuck thermostat or possibly a plugged radiator. Engine overheating issues never go away and will probably get worse. Major engine damage can result if the engine is run hot for very long so I'd have this checked out at a reputable radiator shop as soon as possible.
If the engine has gotten really hot, not long at all. If you're having overheating problems, you may have a warped head and/or a leaking head gasket.
Having just charged a 1993 Sundance, it is located on the compressor itself. Look on the top right of the compressor toward the engine center for the bike tire like fitting.
The ac unit is a tax on the engine to run. This is true with all vehicles. Having the ac on will make the engine work harder to run the ac compressor. This makes the engine run hotter.
A leak could potential cause the issue you describe and still keep the engine from overheating. I would suggest having the cooling system pressure tested for leaks and having any leaks repaired.
by law you shouldn't be allowed to purchase an A/C compressor without having the proper ticket, and if you had the proper ticket you would not be asking this question, but in any case there is already a spot for the ac compressor on the block on the right front half of the engine. a four bolt mount is already installed ready to accept the compressor.
You are having a overheating problem. You failed to mention a description of the car. If it has an electric cooling fan then you need to be sure it is working.
Yes.
It won't 'blow' your engine to run it without a thermostat. However, it could accelerate wear on the engine over the long term. Also, fuel economy and heater performance will generally deteriorate. Simply put, engines are designed to be run at a certain temperature. For this reason, it is always best to run an engine with the proper thermostat. If your engine is overheating, then the cause of the overheating should be found and addressed rather than trying a band-aid fix such as removing the thermostat.