850 Turbo L5-2.3L Turbo VIN 57 B5234FT (1996)
Fuel Pressure: Testing and Inspection
FUEL PRESSURE AND RESIDUAL PRESSURE TESTING
Checking Vacuum Hose to Pressure Regulator
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Remove throttle pulley cover.
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Disconnect vacuum hose from pressure regulator.
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Check for blockage by blowing through hose.
If hose is clear:
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Connect pressure gauge.
If hose is blocked:
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Check hose and connection at intake manifold.
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Clean or replace as required.
Connect Pressure Gauge
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Fit pressure gauge P/N 9995011 using union P/N 9989725 and adapter P/N 9995479.
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Connect adapter to valve on fuel distribution manifold, with adapter in locked position (i.e. valve closed).
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Turn pressure gauge cock towards adapter P/N 9995479.
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Connect other gauge connection to fuel drainage unit P/N 9812270, P/N 9812273 and P/N 9812282.
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Unlock adapter (i.e. valve open).
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Continue with START FUEL PUMP section below.
Start Fuel Pump
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Remove electrical distribution unit cover.
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Remove fuel pump relay (position 103 in electrical distribution unit).
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Connect jumper lead across relay base terminals 1 and 3.
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Switch ignition ON. Fuel pump should start.
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Continue with MEASUREMENT OF SYSTEM PRESSURE section below.
