Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET2002CAVALIER BASE, 4D SEDAN, 2.4 TREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCESYSTEMENGINE CONTROL SYSTEM TESTING & ENGINE COMPONENT TESTINGFUEL SYSTEMS (GASOLINE)FUEL INJECTOR BALANCE TEST (EXCEPT SATURN)TEST DESCRIPTION
2002 Chevrolet Cavalier Base, 4D Sedan, 2.4 T
Test Description
2002 Chevrolet Cavalier Base, 4D Sedan, 2.4 TSECTION Test Description
The numbers below refer to the step numbers in the diagnostic procedures.
- 3
The Engine Coolant Temperature (ECT) must be below the operating temperature in order to avoid irregular fuel pressure readings due to hot soak fuel boiling. - 4
The fuel pressure should be within the specified range. See FUEL PRESSURE SPECIFICATIONS (EXCEPT SATURN) table or FUEL PRESSURE SPECIFICATIONS (SATURN) table. If the fuel pressure is not within the specified range, see appropriate FUEL SYSTEM PRESSURE TEST article under BASIC FUEL SYSTEM CHECKS in BASIC DIAGNOSTIC PROCEDURES - CARS - EXCEPT PRIZM article. - 5
The fuel pressure should reach a steady value. See appropriate FUEL SYSTEM PRESSURE TEST article under BASIC FUEL SYSTEM CHECKS in BASIC DIAGNOSTIC PROCEDURES - CARS - EXCEPT PRIZM article. - 6
If the pressure drop value for each fuel injector is within 1.5 psi of the average pressure drop value, the fuel injectors are flowing properly. Calculate the pressure drop value for each fuel injector by subtracting the second pressure reading from the first pressure reading.
RENDER: 1.0x
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.