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V90 L6-2.9L VIN 96 B6304S (1998)

Powertrain Management > Fuel Delivery and Air Induction > Fuel Pump > Fuel Pressure > System Information > System Diagnosis > Testing Notes > Page 2002

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Fuel Pressure: Testing and Inspection
While In the Workshop

Special Tools:

^

981 2270

^

981 2273

^

981 2282

^

998 9725

^

999 5011

^

999 5479

^

999 5843

Checking Vacuum Hose to Pressure Regulator

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Disconnect vacuum hose from pressure regulator.

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Check that the hose is not blocked by blowing into it. 

If the hose is OK:
^

Proceed to: Connecting Pressure Gauge section below.

If the hose is blocked:
^

Check hose and connector on the intake manifold, clean/replace.

Connecting Pressure Gauge

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Supplement pressure gauge 999 5011 with nipple 998 9725 and adapter 999 5479 before use.

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Remove safety cap from valve on fuel rail.

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Connect adapter to the valve in its locked position (illustration 1 valve closed).

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Turn cock on pressure gauge 999 5011 to position 3 (the cock should point toward the adapter 999 5479).

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Unlock adapter (illustration 2 valve open).

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Continue with: Starting Fuel Pump.

Powertrain Management > Fuel Delivery and Air Induction > Fuel Pump > Fuel Pressure > System Information > System Diagnosis > Testing Notes > Page 2002

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