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 MANUALSGMC1984SUBURBAN K2500, 6.2 J, 475/M40REPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCESYSTEMCARBURETOR - ROCHESTER E4ME 4-BBLADJUSTMENTSCHOKE ROD (FAST IDLE CAM)
1984 GMC Suburban K2500, 6.2 J, 475/M40
Choke Rod (Fast Idle Cam)
1984 GMC Suburban K2500, 6.2 J, 475/M40SECTION Choke Rod (Fast Idle Cam)
NOTE:
Choke coil lever adjustment must be correct before performing this adjustment. Fast idle speed adjustment must be performed using the Emission Control Tune-Up Decal with carburetor installed and vehicle running. Adjustment is performed with choke valve angle gauge. See procedure at beginning of Adjustments. DO NOT
remove rivets and choke cover to perform this adjustment.
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.