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 MANUALSCHEVROLET1987CHEVETTE L4-98 1.6LREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTTUNE-UP AND ENGINE PERFORMANCE CHECKSIDLE SPEEDADJUSTMENTSFAST IDLE SPEED
1987 Chevrolet Chevette L4-98 1.6L
Fast Idle Speed
1987 Chevrolet Chevette L4-98 1.6LSECTION Fast Idle Speed
Refer to Tune Up Specifications chart for curb and fast idle speeds. Check and, if necessary, adjust engine idle speeds every 30,000 miles.
CARBURETED MODELS
Exc. Nova
1. Disconnect and plug vacuum hoses as directed on vehicle emission label.
2. Place fast idle adjusting screw on highest step of fast idle cam.
3. Turn adjusting screw inward or outward as required until specified fast idle speed is obtained.
FUEL INJECTED MODELS
No provision for adjustment is provided for fuel injection equipped vehicles.
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.