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 MANUALSCHEVROLET1995CAVALIER LS, 4D SEDAN, 2.2 4REPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCESYSTEMENGINE CONTROLS - TESTS W/CODES - 2.3L (W/OBD-II)DIAGNOSTIC TROUBLE CODESDTC P0506 - IAC SYSTEM RPM LOWDIAGNOSTIC AIDS
1995 Chevrolet Cavalier LS, 4D Sedan, 2.2 4
Diagnostic Aids
1995 Chevrolet Cavalier LS, 4D Sedan, 2.2 4SECTION Diagnostic Aids
Inspect IAC valve connector for proper connection. Inspect throttle stop screw for signs of tampering. Inspect throttle linkage for signs of binding or excessive wear. A slow or unstable idle may be caused by one of the following:
- Fuel system too rich or too lean.
- Foreign material in throttle body bore or in air induction system.
- Leaking or restricted intake manifold.
- Excessive engine overloading.
- Too high a viscosity engine oil.
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.