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 MANUALSCHEVROLET1983CHEVELLE/MALIBU V8-305 5.0LREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSIDLE UP CONTROL VALVETESTING AND INSPECTION
1983 Chevrolet Chevelle/Malibu V8-305 5.0L
Idle Up Control Valve: Testing and Inspection
1983 Chevrolet Chevelle/Malibu V8-305 5.0LSECTION Testing and Inspection
Fig. 041 - Chart C-2B Idle Speed Solenoid Throttle Kicker.:
CHART C-2B, IDLE SPEED SOLENOID
Idle speed solenoid is used to increase throttle opening during certain deceleration modes and when the A/C is "ON". The solenoid is controlled by a relay which has two sets of contacts. Control of the relay is by the ECM which completes a ground to energize the solenoid. When energized, idle is increased only if A/C is "ON". When de-energized throttle opening is increased regardless of A/C position.
1. Checks for normal operation of solenoid. With key "ON" engine not running solenoid plunger should extend.
2. Checks for normal solenoid plunger retraction if "test" terminal is grounded.
RENDER: 1.0x
NO RELATED
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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.