Chevrolet Sonic Repair Manual: Engine Control

Internal Combustion Powertrain Control

General

Other materials:

Crankshaft Balancer Installation
Special Tools EN-470–B Angular Torque Wrench EN-956?E Extension EN-49979 Crankshaft Shock Mount Retainer For equivalent regional tools, refer to Special Tools. Note: The crankshaft balancer flange must fit to the hexagon of the oil pump rotor (2) and to the two ...

Intake Manifold Replacement (LDE)
Removal Procedure Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection. Remove the throttle body assembly. Refer to Throttle Body Assembly Replacement. Disconnect wiring harness plug. Disconnect the pipes from ...

Fuel System Cleaning
Note: If the fuel filter is plugged, the fuel tank should be inspected internally and cleaned if necessary. Drain the fuel tank. Refer to  Fuel Tank Draining. Remove the fuel pump module assembly. Refer to  Fuel Tank Fuel Pump Module Replacement. Inspect the f ...