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 MANUALSGMC1984PICKUP K2500, 6.2 C, STANDARDREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCESYSTEMCARBURETOR - ROCHESTER 2SE & E2SE 2-BBLOVERHAULDISASSEMBLYTHROTTLE BODY
1984 GMC Pickup K2500, 6.2 C, Standard
Throttle Body
1984 GMC Pickup K2500, 6.2 C, StandardSECTION Throttle Body
- Hold throttle valves wide open. Disengage pump rod from throttle lever by rotating rod until tang on rod aligns with slot in lever.
- DO NOT
remove plug covering idle mixture screw unless it is necessary to replace mixture screw or normal soaking and air pressure fails to clean idle mixture passages. Remove curb idle and fast idle speed screws and springs if necessary.NOTE: Further disassembly of throttle body is not required. Throttle valve screws are permanently staked. DO NOT remove idle mixture screw plug unless necessary to replace mixture screw or cleaning and air pressure fails to clean idle mixture passage. If necessary to remove, proceed as follows:
- Invert throttle body and position on a holding fixture with manifold side up. Using a small hacksaw, make 2 small cuts, one on either side of mixture screw plug location. Position a small flat punch on throttle body between cuts.
- Drive punch down and break out portion of throttle body between the 2 cuts. Hold punch at a 45° angle and drive out hardened steel plug. Plug should shatter when struck. Remove loose pieces to allow the use of adjusting tool (J 29030 or equivalent) to remove adjusting screw and spring.
- Turn mixture screw in carefully, counting turns needed to seat screw. Record number of turns for reassembly reference. Remove mixture screw.
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.