Re: need help with A/C problem.. compressor not engaging
To find the problem it is a good idea to study the Heating/Air Conditioning section in the Shop Manual. A good digital Multimeter is a good thing to have when checking the ohms, volts etc as some of the readings are very low and will not show up on the normal analog meter.
If you cannot check the circuits out it is really hard to diagnose some problems over the forum, guesses could be way off and if you do things that are incorrect then you could add further problems.