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Chevrolet Master
17,989 Answers
- Posted on Feb 26, 2010
Re: Where is fuel pressure regulatore located
For 2000 Chevrolet Truck Blazer
4WD 4.3L SFI 6cyl
If your engine is a 4.3L V-6 with CPI (central point injection) it is
inside the upper intake manifold. The upper intake manifold is bolted on
top of the normal intake manifold.
The throttle body is mounted on
it and your fuel lines terminate into the center of this.
Removal & Installation
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Relieve the fuel system pressure.
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Remove the air cleaner outlet resonator.
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Disconnect the engine wiring harness from the retaining clips at
the front of the engine.
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Disconnect the fuel pressure regulator vacuum line.
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Clean any dirt from the fuel pressure regulator and the
surrounding area.
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Disconnect the fuel return pipe.
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Remove the fuel return pipe retainer.
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Remove the fuel pressure regulator retainer.
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Remove the fuel pressure regulator.
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Inspect the regulator filter screen for contamination. If
contaminated, replace the fuel pressure regulator.
To install:
Fig. Fuel pressure regulator-4.2L engine
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Install the regulator filter.
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Install the new O-ring on the fuel pressure regulator.
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Lubricate the fuel pressure regulator O-ring with clean engine
oil.
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Push the fuel pressure regulator into the regulator housing on the
fuel rail.
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Install the fuel pressure regulator retainer. Tighten the
regulator retainer screw to 71 inch lbs. (8 Nm).
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Install the fuel return pipe retainer. Tighten the return pipe
retainer screw to 71 inch lbs. (8 Nm).
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Connect the fuel return pipe.
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Connect the fuel pressure regulator vacuum line.
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Connect the negative battery cable.
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Inspect for leaks:
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Turn ON the ignition for 2 seconds.
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Turn OFF the ignition for 10 seconds.
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Turn ON the ignition.
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Inspect for fuel leaks.
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Install the engine wiring harness into the retaining clips at the
front of the engine.
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Install the air intake resonator.
Hope help with this (remember rated this post).
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