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 MANUALSCHEVROLET1987CAVALIER BASE, 4D SEDAN, STANDARD, MR3REPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCEADJUSTMENTTUNE-UP - V6ADJUSTMENTSCOLD (FAST) IDLE RPM3.8L 2-BBL.
1987 Chevrolet Cavalier Base, 4D Sedan, Standard, MR3
3.8L 2-Bbl.
1987 Chevrolet Cavalier Base, 4D Sedan, Standard, MR3SECTION 3.8L 2-Bbl.
With engine off, place throttle on high step of fast idle cam. Disconnect and plug EGR valve vacuum hose. Start engine without touching throttle and adjust fast idle speed.
FAST IDLE SPEED (RPM) (1)
| Application | Man. Trans. | Auto. Trans. | ||
|---|---|---|---|---|
| 3.8L 2-Bbl. (VIN A) | N/A | 2200 | ||
|
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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.