Caution: Connect the fuel return line before tightening the regulator attaching
screw in order to prevent the regulator from rotating. Rotation of the regulator
could damage the retainer and spacer bracket and lead to a fuel leak at the
regulator inlet.
Notice:
• | Do not use compressed air in order to test or clean a fuel pressure
regulator as damage to the fuel pressure regulator may result. |
• | Clean the fuel pressure regulator filter screen with gasoline
if necessary. |
• | Do not immerse the fuel pressure regulator in a solvent bath in
order to prevent damage to the fuel pressure regulator. |
- Lubricate the fuel pressure regulator inlet and the fuel return
pipe O-rings with clean engine oil.
- Install the fuel pressure regulator inlet and the fuel return pipe O-rings.
- Install the fuel return pipe to the fuel pressure regulator.
- Install the new retainer and spacer bracket into the slot on the fuel
rail.
Notice: Use the correct fastener in the correct location. Replacement fasteners
must be the correct part number for that application. Fasteners requiring
replacement or fasteners requiring the use of thread locking compound or sealant
are identified in the service procedure. Do not use paints, lubricants, or
corrosion inhibitors on fasteners or fastener joint surfaces unless specified.
These coatings affect fastener torque and joint clamping force and may damage
the fastener. Use the correct tightening sequence and specifications when
installing fasteners in order to avoid damage to parts and systems.
- Install the pressure regulator to the fuel rail.
Tighten
Tighten the engine fuel return pipe nut to 17 N·m (13 lb ft).
- Install the fuel pressure regulator screw.
Tighten
Tighten the screw to 8.5 N·m (75 lb in).
- Inspect and verify that the retainer and spacer bracket is engaged in
the slots in the fuel rail. Grasp and pull on the regulator to ensure that the regulator
is properly seated.
- Connect the fuel pressure regulator vacuum line.
- Connect the negative battery cable. Refer to
Battery Negative Cable Disconnection and Connection
in Engine Electrical.
- Inspect for fuel leaks with the following procedure:
10.1. | Turn ON the ignition for 2 seconds. |
10.2. | Turn OFF the ignition for 10 seconds. |
10.3. | Turn ON the ignition. |
10.4. | Inspect for fuel leaks. |