I am new to this site and have already learned much from reading the forum. I just bought a 89 Par Car 36 volt golf cart. Put in new batteries and cleaned the cables. I charged it overnight. It will go forward slowly, but will not climb an incline. Does not seem to have full power. Also it will not move in reverse. I can hear the solenoids clicking. I have tested the two larger solenoids, they are ok. The two small solenoids connected to the ground side are a puzzle to me. They both have coils attached to them to dissipate heat. I am unsure of the correct way to test them. I am looking for a wiring diagram and any info that can help, Thanks in advance. I plan to start a thread on the rebuild of this cart soon.