Sierra 3500 4WD V8-6.6L DSL Turbo VIN 2 (2004)
EGR Valve: Service and Repair
EXHAUST GAS RECIRCULATION (EGR) VALVE REPLACEMENT
REMOVAL PROCEDURE
1. Remove the exhaust gas recirculation (EGR) cooler tube.
2. Remove the EGR valve bolts (3).
3. Remove the EGR valve/solenoid assembly (1).
4. Remove and discard the EGR valve/solenoid assembly gasket (2).
INSTALLATION PROCEDURE
1. Install a NEW EGR valve/solenoid assembly gasket (2).
2. Install the EGR valve/solenoid assembly (1).
NOTE: Refer to Fastener Notice in Service Precautions.
3. Install the EGR valve bolts.
Tighten
Tighten the bolts to 20 N.m (15 lb ft).
4. Install the EGR cooler tube.