K 2500 Truck 4WD V6-262 4.3L (1988)
EGR Control Solenoid: Description and Operation
The ECM will energize the EGR solenoid (EGR "ON") when the engine is warm and above idle. There is little EGR flow at wide open throttle due to
lack of vacuum.
EGR Control Solenoid: Description and Operation
The ECM will energize the EGR solenoid (EGR "ON") when the engine is warm and above idle. There is little EGR flow at wide open throttle due to
lack of vacuum.