Question about 1993 Chevrolet Astro
Under the upper intake manifold:
This procedure is for the CSFI system as the CMFI system uses an integral fuel pressure regulator. The CSFI uses a replacable unit mounted on the CSFI assembly.
REMOVAL & INSTALLATION
Posted on Oct 02, 2010
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Posted on Jan 02, 2017
I doubt the regulator is bad, the fuel pressure regulator is after the injectors in the return stream to the tank, more likely it is the fuel pump.
Posted on Mar 10, 2009
another engineers wet dream. think of it this way . what is normally in the intake when the engine is running.. answer vacume, hence the regulator gets its vacume without a hose connected to it as its already in a full time vacume chamber.no hose required . ps be carefull to seat the regulator and o rings securely into the housing befor you reattach the secureing metal clip.
good luck chris
Posted on Mar 23, 2009
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Nov 18, 2015 | 2002 Ford Explorer
Removal & Installation The need to work as cleanly as possible cannot be over-emphasized. Even the smallest amount of dirt, if allowed into the fuel pressure regulator and/or the fuel rail, will find its way to the fuel injectors. The nozzle openings of the injectors are very small. Keep hands and tools clean. Clean the areas to be disconnected with a suitable solvent. Carefully cover open fittings and connections to keep out foreign material. Dirt in the injectors almost guarantees a clogged fuel injector and engine performance problems.
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Fig. Exploded view of the fuel pressure regulator mounting-3.4L (VIN E) engines
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