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 MANUALSPONTIAC1987GRAND PRIX BROUGHAM, 5.0 HREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCESYSTEMCARBURETOR - ROCHESTER E2ME 2-BBLADJUSTMENTSIDLE MIXTURE (BENCH ADJUSTMENT)
1987 Pontiac Grand Prix Brougham, 5.0 H
Idle Mixture (Bench Adjustment)
1987 Pontiac Grand Prix Brougham, 5.0 HSECTION Idle Mixture (Bench Adjustment)
NOTE:
This is a preliminary adjustment only. It is required to
ensure that mixture screws and idle air bleed valve are set
close to specifications prior to final adjustment. Final
adjustment must be made with carburetor installed and engine
running. See appropriate TUNE-UP article.
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.