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.
Idle Speed (Buick)
Make adjustment with engine at normal operating temperature, air cleaner installed, choke open, and air conditioner OFF. Disconnect the hose from air cleaner to vapor canister. Disconnect and plug distributor vacuum hose. Open throttle sufficiently to permit idle solenoid to extend and contact throttle lever pad in idle position. Adjust solenoid set screw to obtain higher RPM listed.
Disconnect solenoid wire and adjust idle screw to obtain the lower RPM listed.
NO RELATED
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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.