ac problem

Well actually... it started so hard I thought it couldn't be loose belt or loose clutch,,... i let it sit for 2 days (driving electric car instead) by chance,, and "Bawallah" it fixed itself??   Now reflections tell me perhaps it was kinda locked (similar to ol fashion vapor lock in which the gas pump when heated in hot summers would vaporize the gas and try to pump vapor which prevented gas from coming in in any more than dribbles.. pow pop bang ). .. but this is kinda of a high pressure liquid lock in which the pump never gets to release the pressure but actually cools great too,  the problem was that it would start hard (meaning perhaps that it never released the pressure when cycling on./off every 5-10 seconds at high rpm).   

Anyway its fixed on the that problem.

the other problem 2.  is that it won't engage at idle on first start up, so I'm thinking its separate problem that is possibly a bad sensor such as Throttle position or speed sensor,..    it will engage if slight revving is applied to throttle (just a little bit does it..) after that it works fine.   I can live with that.. thanks for your help and advice.