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 MANUALSGMC1983VALUE VAN P2500, 6.2 J, STANDARDREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCEADJUSTMENTTUNE-UP - 5.0L V8 VIN [F]COLD (FAST) IDLE RPM
1983 GMC Value Van P2500, 6.2 J, Standard
Cold (Fast) Idle Rpm
1983 GMC Value Van P2500, 6.2 J, StandardSECTION Cold (Fast) Idle Rpm
- Place transmission in neutral. Move cam follower onto highest step of fast idle cam. Disconnect and plug vacuum hose to EGR valve, canister purge hose and purge signal hose at canister.
- Start engine without touching throttle. Turn fast idle speed screw to adjust speed to specification.
NOTE:
For information regarding the choke, look at AUTOMATIC CHOKE
under FUEL SYSTEMS in this article.
FAST IDLE SPEED
| Application | Man. Trans. | Auto. Trans. |
|---|---|---|
| 5.0L | N/A | 1800 |
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.