1998 Chevrolet K1500 Logo
Anonymous Posted on Apr 14, 2010

Where is the fuel pressure regulator located on a 1998 chevy k1500 4.3 vortec THANKS

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ZJ Limited

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  • Chevrolet Master 17,989 Answers
  • Posted on Apr 14, 2010
ZJ Limited
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It under the plastic upper intake plenum connected to the CFI assembly.

where is the fuel pressure regulator located on a - be02898.jpg
Fuel Pressure RegulatorREMOVAL & INSTALLATION
(see Figure 1)

  1. Disconnect the negative battery cable.
  2. Relieve fuel system pressure.
  3. Disconnect the ignition coil.
  4. Remove the upper intake manifold.
  5. Disconnect the vacuum line to the regulator.
  6. Remove the snapring from the regulator housing.
  7. Place a towel under the regulator to absorb any spilled fuel and remove the pressure regulator from the fuel rail socket.
  8. Remove the pressure regulator from the fuel rail.
  9. Remove the pressure regulator O-ring filter, O-ring backup and O-ring and discard them.


Fig. 1: Exploded view of the pressure regulator assembly-MFI systems


To install:
  1. Before installing the O-rings, lubricate them with clean engine oil and install them on the regulator inlet as a complete assembly.
  2. Install the snapring retainer into the slot on the regulator housing.
  3. Connect the vacuum line to the regulator.
Ensure that the retainer is properly seated in the slot in the regulator housing. Pull on the regulator to make sure that it is properly seated.
  1. Connect the negative battery cable.
  2. Turn the ignition ON for 2 seconds and then turn it OFF for 10 seconds. Again turn the ignition ON and check for leaks.
  3. Install the manifold plenum.

Good luck; TY for using Fixya (remember rated this post)

Testimonial: "Thanks So much ZJLimited for the quick and accurate info"

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  • Expert 100 Answers
  • Posted on Apr 14, 2010
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