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Home >> Jeep >> 2003 >> Grand Cherokee Overland >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System & Component Testing >> Fuel Systems >> Fuel Control >> Fuel Injectors

Fuel Injectors

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To perform a complete test of the fuel injectors and their circuitry, use the DRB scan tool and refer to the appropriate Powertrain Diagnostic Procedures manual.

To test the injector only, disconnect fuel injector from wiring harness. Connect ohmmeter between fuel injector terminals. Resistance should be about 10.8-13.2 ohms at 68°F (20°C). If resistance is not as specified, replace fuel injector.