850 T-5R L5-2.3L Turbo VIN 58 B5234T5 (1995)
System Pressure Too Low
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Clamp return line and check if pressure rises.
CAUTION: Do not allow pressure to exceed 600 kPa (87 psi).
If pressure rises:
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Pump and lines are intact.
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Replace pressure regulator and measure system pressure again.
If pressure does not rise:
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Check the strainer at the fuel pump.
If fuel pump strainer is OK:
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Replace the fuel pump and measure system pressure again.
Checking the Fuel Filter
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Squeeze the return pipe and check it the pressure rises.
CAUTION: Do not let the pressure rise higher than 600 kPa (87 psi).
If the pressure rises quickly:
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Check the pressure regulator.
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Proceed to : CHECKING PRESSURE REGULATOR, PRESSURE REDUCTION section below.
If the pressure rises slowly:
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Replace the fuel filter.
Checking Pressure Regulator, Pressure Reduction
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Connect vacuum pump P/N 9995843 to pressure regulator.
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Purge the regulator.
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Check that system pressure falls by same amount as regulator pressure.
300 kPa (43.5 psi) - vacuum = system pressure
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Disconnect hose from vacuum pump.
System pressure should return to 300 kPa (43.5 psi).