volvo Workshop Repair Guides

Volvo Workshop Service and Repair Manuals

Checking the Fuel Pressure While Driving|Page 1831 > < Checking the Fuel Pressure While Driving|Page 1829
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Note! Note the measurement value at this step.The result might be needed as a reference in step 12.

Disconnect the vacuum hose from the pressure regulator.

Note! Position the gauge so that the movement of the needle can be read when the engine is started.

Start the engine.
The pressure should rise to approximately 309 kPa (45psi) immediately.
If the pressure is correct, continue measuring the "Front pressure regulator" (5) or (6).
 A:The pressure rises slowly to the correct pressure:
Switch off the engine.
Continue with " Check the rear fuel pressure" (8).
 B:Too low or too high pressure.
Switch off the engine.
Continue with " Check the rear fuel pressure" (8).

Front pressure regulator, B4XX4T

Checking the Fuel Pressure While Driving|Page 1831 > < Checking the Fuel Pressure While Driving|Page 1829