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 MANUALSCHEVROLET1985SUBURBAN C10, 6.2 CREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCETESTING & DIAGNOSISFUEL INJECTION SYSTEM - 6.2L DIESELREMOVAL & INSTALLATIONINJECTION PUMPREMOVAL (PICKUP)
1985 Chevrolet Suburban C10, 6.2 C
Removal (Pickup)
1985 Chevrolet Suburban C10, 6.2 CSECTION Removal (Pickup)
- Disconnect negative battery cables. Remove fan, shroud, air cleaner and intake manifold. Install screens in cylinder heads. Remove fuel injection lines as previously described.
- Disconnect throttle cable, return springs and detent cable (if equipped). Disconnect wires, fuel return line, fuel supply line and fuel injection lines at pump. Cap all fuel lines.
- Remove A/C hose retainer bracket, if equipped. Remove oil filler tube and PCV vent hose assembly. Remove grommet. Scribe or paint an alignment mark on front cover and injection pump.
- Rotate engine to remove injection pump retaining bolts that are accessible through oil filler neck hole. Remove injection pump-to-front cover nuts. Remove injection pump and gasket.
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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.