Sierra Classic 2500 2WD V8-6.6L DSL Turbo (2007)
13. Disconnect the engine coolant temperature (ECT) sensor electrical connector.
14. Reposition the exhaust gas recirculation (EGR) coolant pipe hose clamp.
15. Remove the EGR coolant pipe hose.
16. Remove the EGR coolant pipe bolts.
17. Remove the EGR coolant pipe.
18. Remove and discard the coolant pipe O-ring seal.
Installation Procedure
