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 MANUALSCHEVROLET1987FORWARD CONTROL 4.8 T, AUTOMATIC, 400/M40REPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE MECHANICALMECHANICAL6.2L V8 DIESEL - VINS [C,J]REMOVAL & INSTALLATIONINTAKE MANIFOLDREMOVAL
1987 Chevrolet Forward Control 4.8 T, Automatic, 400/M40
Intake Manifold: Removal
1987 Chevrolet Forward Control 4.8 T, Automatic, 400/M40SECTION Removal
- Disconnect batteries. Remove engine cover on van models. Remove air cleaner. Disconnect PCV and EGR hoses. Remove fuel line bracket and ground strap. Remove EPR/EGR valve bracket and A/C bracket (if equipped). On van models remove crankcase depression relief valve.
- Loosen vacuum pump hold-down clamp and rotate pump to gain access to intake manifold bolt (if equipped). Remove intake manifold bolts and fuel line clips. Remove intake manifold.
CAUTION:
Proper intake manifold gaskets must be used according to vehicle emission rating.
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.