throttle body hose location

1990 OLDSMOBILE CIERA
100,000 MILES • 3.1L • V6 • 2WD • AUTOMATIC
Avatar
MECHAK
  • MEMBER
  • 1 POST
where does this hose shown below connect to?
Nov 29, 2020 at 11:28 AM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
Advertisement
Avatar
ASEMASTER6371
  • CAR REPAIR CONTRIBUTOR
  • 52,796 POSTS
Good evening,

Good chance that is for the fuel pressure regulator. I attached a picture for you to view. Check and see if there is a loose hose around it.

Roy

WARNING: To reduce the risk of fire and personal injury that may result from a fuel leak, always replace O-ring seals exposed during component service.

REMOVAL:

1. Disconnect the negative battery cable.
2. Relieve the fuel system pressure, see MAINTENANCE PROCEDURES/FUEL SYSTEM PRESSURE RELIEF.
3. Remove the fuel rail assembly, see FUEL RAIL ASSEMBLY.
4. Remove the pressure regulator attaching screws.
5. Remove the pressure regulator from the fuel rail.
6. Remove the fuel pressure regulator retainer.
7. Remove the fuel rail to regulator base seal and discard.

INSTALLATION:

1. Lubricate the new fuel rail to regulator base O-ring seal with clean engine oil, and install it on the fuel rail.
2. Install the fuel regulator retainer.
3. Install the fuel regulator assembly.
4. Install the fuel regulator attaching screws, and tighten to 5.5 Nm (49.0 lb. in).
5. Tighten the fuel rail outlet fitting to 27.0 Nm (20.0 lb.ft).
6. Install the fuel rail assembly, see FUEL RAIL ASSEMBLY.
7. Connect the negative battery cable.
8. With the engine OFF and the ignition ON, check for fuel leaks.
Nov 29, 2020 at 2:10 PM
Advertisement