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 MANUALSCHEVROLET1985BLAZER 5.0 H, STANDARD, MY6REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 45 (FEEDBACK CARBURETOR TESTS W/CODES)CHART C-2A: IDLE SPEED CONTROL (ISC) CHECK
1985 Chevrolet Blazer 5.0 H, Standard, MY6
Chart C-2A: Idle Speed Control (ISC) Check
1985 Chevrolet Blazer 5.0 H, Standard, MY6SECTION Chart C-2A: Idle Speed Control (ISC) Check
WARNING: This page does not describe the selected car, but rather 28 other vehicles, including the 1984 Pontiac Phoenix, 1984 Pontiac Parisienne, 1984 Pontiac Grand Prix, 1984 Pontiac Firebird, and 1984 Pontiac Bonneville. However, it is still accessible from the selected car via links, so may be relevant.
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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.