Other information:
Power Transfer Unit
The
Power Transfer Unit (PTU) is a gearbox that attaches to the
transmission. The PTU directs power from the transmission differential
case through a dog clutch to a hypoid ring gear. A hypoid pinion gear is
meshed to the ring gear and splined to the output flange...
System Operation
Engine coolant flows primarily from the engine to the radiator circuit
and back to the coolant pump. Coolant is sent from the coolant pump
through the engine block and cylinder heads. A separate circuit from the
engine also feeds the heater core and exhaust heat exchanger with
coolant...