Fuel Rail: Service and Repair

Fig. 11 Fuel injection components. All 1984-86 models & 1987 models w/Turbo I:

Fig. 12 Fuel rail & injector assembly. All 1984-86 models & 1987 models w/Turbo I:

All 1984-86 Models & 1987 Models W/Turbo I
1. Release fuel system pressure.
2. Loosen supply hose clamps at fuel rail inlet and remove hose.
3. Disconnect fuel pressure regulator vacuum hose from intake manifold vacuum tree.
4. Remove fuel pressure regulator bolts from intake manifold bracket, Fig. 11.
5. Loosen fuel rail to pressure regulator hose clamp at rail end and remove hose and regulator.
6. Remove screw from fuel rail to valve cover bracket.
7. Disconnect fuel injector wiring harness.
8. Remove clips from fuel injector heat shield, Fig. 11.
9. Remove fuel rail to intake manifold bolts, then fuel rail and injector assembly by pulling rail so that injectors come straight out of their ports. Take care not to damage rubber injector O-rings.
10. Remove fuel rail assembly from vehicle, Fig. 12. Do not remove fuel injectors until fuel rail assembly has been completely removed from vehicle.
11. Be sure injectors are seated in receiver cup with lock ring in place.
12. Make sure injector openings are clean and that any plugs have been removed.
13. Apply drop of oil to injector O-rings.
14. Draw injector assembly into intake manifold taking care to seat each injector in its hole. Once all injectors are seated properly, torque bolts to 250 inch lbs.
15. Connect injector wiring harness to injectors.
16. Install heat shield clips.
17. Connect injector wiring harness to main harness.
18. Install fuel rail to valve cover bracket.
19. Reconnect fuel pressure regulator vacuum hose to vacuum tree.
20. Install fuel pressure regulator hose clamp and hose to fuel rail.
21. Install fuel pressure regulator on intake manifold bracket and tighten screws.
22. Connect fuel supply hose and clamp to fuel rail inlet. Torque clamp to 10 inch lbs. Check that all ground straps, hoses, and wiring harnesses are located properly.
23. Connect battery ground cable.
24. Check system for leaks.