You can better see the compressor if you lift up the vehicle......
If your vehicle has a serpentine belt that is used to drive the accessories ( alternator , air conditioning compressor , power steering , etcetera ) the serpentine belt has a spring loaded tensioner that is supposed to keep the proper tension on the belt ( if it is working correctly )
I presume you mean the A/C compressor. The easiest way is to buy a serpentine belt for the model of the vehicle you have without A/C fitted, and then use that. This is a known temporary cure for roadside assistance.
Dependin on the vehicle you may be able to get the serpentine belt for the same vehicle that does not have the option of having AC
The crankshaft sensor on the Ford F-150 is located behind the air conditioning compressor. To replace the crankshaft sensor on this vehicle, the air conditioning compressor needs to be removed first.
In a nutshell, it's a power source for propelling the vehicle, and powering the alternator, air conditioning compressor, and power steering pump.
The 1990 Mitsubishi does not have an air conditioning recharge line. The vehicle has an air conditioning recharge port. You can recharge your air conditioning system through the low pressure port on the air conditioning compressor.
It is normal for a vehicle, including the Honda Odyssey, to lose some power when the air conditioning is running. This is because there are more devices running off the operation of the serpentine belt. If the vehicle stalls or shuts off, it might be a problem with the alternator or the air conditioning unit.
The serentine belt keeps your cooling fan turning and also helps the alternator which keeps your battery charged. The belt runs everything, power steering pump, water pump alternator as mentioned above as well as the air conditioning compressor and smog pump.
Many cars can have the ac compressor bypassed. Buying a belt for the same model vehicle without ac should be the correct length for a replacement.
Have your mechanic run the serpentine belt around the compressor. I had a bad compressor last year, and the mechanic just re-routed the belt until I could afford a new compressor-then he installed it and re-routed the belt again so it would run the compressor. Purchase a serpentine belt the same vehicle but without A/C. The shorter belt will drive all the other accessories and is routed the same as the belt used with A/C, except for the compressor.