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 MANUALSPONTIAC1987FIERO BASE, STANDARD, MG3REPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE MECHANICALMECHANICAL2.5L 4-CYL - VINS [R,U]REMOVAL & INSTALLATIONINTAKE MANIFOLDINSTALLATION
1987 Pontiac Fiero Base, Standard, MG3
Intake Manifold: Installation
1987 Pontiac Fiero Base, Standard, MG3SECTION Installation
- Clean cylinder head and intake manifold gasket surfaces. Install manifold and new gasket on cylinder head. Start all bolts finger tight only.
- Apply sealant to bolts No. 4, 5 and 6. Tighten manifold retaining bolts using sequence and specifications shown in illustration. See Fig 1. Reverse removal procedure to complete assembly.
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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.