went to conver over my orginal r12 to r134 and when i was recharging the system it was taking alot less of refrigerant then needed so i checked out the compressor and found out that the clutch was not engaging disconected the cable from the compressor and jumped it strait from the battery and the clutch engaged, which leads me to believe theres either a short in the line or some fuse i dont know about. Any ideas would help thanks.

 

There is a pressure switch that won't allow the compressor to engage until there is enough pressure in the system. It's located on the silver can (dryer/accumulator) near the fire wall. If you unplug the connector an jump the leads your compressor should turn when you turn on the AC.

 

So if i do that will my aircondition system charge normal? because i didnt even use a full can before the pressure level read good.

 

Without the compressor turning I wouldn't believe any pressure readings because the refrigerant isn't being circulated.

 

Well i took what you said into thought and i just jumped the compressor from the batter to engage the clutch and charged the system and it worked out im pretty sure cause now when i turn on the car and crank up the a/c the clutch engages and the pressure level is good according to the pressure gage on the filler hose and the car blows cold air. The only thing is when the car is turned off i noticed the presure goes well into the alert zone on the gauge is this normal.


But why i think the i got high pressure reading when not using and of the rechare bottle was because instead of the refrigirant being circulated i think it was just staying in one place cause that to fill up quick.

 

Yes, it is normal.
When the system is running, and everything is in good shape, the low side pressure can vary from 20 psi to 45 psi. It all depends on conditions. If you turn the ac off on a hot day, the pressure can rise as high as 100-120, and there's nothing wrong with it.
When the compressor is running, it is not just building pressure on the high (discharge) side, but pulling pressure down on the low (suction) side.

 

Alright cool thanks for the help