Tracker 4WD V6-2.5L VIN 4 (2001)
EGR Valve: Description and Operation
EGR VALVE
EGR Valve
The EGR valve is a stepper motor design. A stepper motor (6) drives a worm gear, that is in mesh with a spring (1) loaded plunger (5). The valve (2) end
of the plunger (4) controls the flow of exhaust gases (3). The plunger movement is controlled by the Powertrain Control Module (PCM). By turning the
stepper motor in different directions, the PCM controls the opening of the exhaust gas passage to the intake manifold.
