QX56 AWD V8-5.6L (VK56DE) (2005)
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Follow all other instructions for performing the Stall Test under InspecUons Before Trouble Diagnoses" in Section AT of the Service Manual.
CAUTION:
Do not hold down the accelerator pedal for more than 5 seconds while performing the Stall Test.
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Fuel pressure is NG if it drops below 45 psi during the Stall Test.
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If the fuel pressure is OK, this bulletin does not apply. Return to ASIST for further diagnosis and repair information.
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If the fuel pressure is NG, go to step 3.
3.
Replace the fuel pump.
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Follow all instructions under Fuel Pump Assembly, Removal and Installation" in section FL of the appropriate Service Manual.
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Use the fuel pump listed in the Parts Information.
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Make sure to use a new fuel pump 0-ring seal.
4.
Test drive the vehicle; make sure the incident is fixed.
NOTE:
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Low fuel pressure may cause DTCs to be detected. If you have DTCs with this incident; first replace the fuel pump and then recheck the
DTC diagnosis.
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DTC diagnosis and repair is not covered by this TSB.
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