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The fuel pressure regulator is located under the upper intake manifold. It is connected the the bank of injector poppets. With a fuel pressure gauge installed to the test port, you cycle the ignition key on and off several times until the pressure peaks. It should peak at 60 to 66 psi.
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Earn +20 ptsQ: Where is the fuel pressure on 1999 Chevy s10 4.3?
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