Need truck bad, tried to start truck the starter cranks a couple of revaluations then stops then repeats with no starting of motor. The dash appears to loose power. After several repeats of it start and stop cranking the reverse light come on and nothing will happen, if you let it set the light will go back to park. I bypassed the start solenoid and the motor cranks fine but no start. New batteries good connections. I swapped relays checked all fuses. With out a good schematic I'm kinda dead in the water. Looking for help and ideas thanks