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 MANUALSCHEVROLET1987ASTRO VAN CARGO, 4.3 Z, STANDARDREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCESYSTEMFUEL INJECTION SYSTEM - TBIOVERHAULREASSEMBLY (MODEL 700)FUEL INJECTOR
1987 Chevrolet Astro Van Cargo, 4.3 Z, Standard
Fuel Injector
1987 Chevrolet Astro Van Cargo, 4.3 Z, StandardSECTION Fuel Injector
- Lubricate "O" rings with automatic transmission fluid. Make sure upper "O" ring is in groove and that lower "O" ring is flush against filter. See Figure.
- Press injector into fuel cavity. Ensure injector electrical connector is facing cut-out in fuel meter body for wire grommet. Apply Loctite to injector retainer screw. Install injector retainer and screw.
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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.