Chevrolet Cobalt Service & Repair Manual: Fuel Pumps

Diagnosis & Testing

Accessing Diagnostic Trouble Codes Connect a suitably programmed scan tool to Diagnostic Link Connector (DLC) and follow manufacturer's instructions. Wiring Diagrams Refe ...

Fuel Pressure Relief

1. Loosen fuel fill cap to relieve fuel tank vapor pressure. 2. Remove engine cover. 3. Remove fuel rail ser ...

See also:

Chevrolet Cobalt Service & Repair Manual. EGR Functional Tests
Fuel Injected Gasoline Engine The EGR systems used on fuel injected engines are controlled by the ECM. The ECM will store a code in memory when the EGR system malfunctions. Refer to appropriate "Diagnostic Code Identification Chart" for code number. Linear EGR Val ...