XL-7 2WD V6-3.6L (2007)
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Poor connections at the harness connectors and ground circuits of the fuel pump
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If you find a condition, repair as necessary.
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If all components test normal, replace the fuel pump.
NOTE: The fuel pressure may vary slightly when the fuel pump stops operating. After the fuel pump stops operating, the fuel pressure should
stabilize and remain constant.
2. Verify that the fuel pressure does not decrease more than 34 kPa (5 psi) in 1 minute.
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If the fuel pressure decreases more than the specified value, perform the following procedure:
a. Ignition OFF, relieve the fuel pressure. Refer to Fuel Pressure Relief (With J34730-1A) Fuel Pressure Relief (Without J 34730-1A).
b. Install the J 37287 between the fuel feed pipe and the fuel rail.
c. Open the valve on the J 37287.
d. Bleed the air from the fuel pressure gage.
e. Close the valve on the J 37287.
f.
Verify that the fuel pressure does not decrease more than 34 kPa (5 psi) in 1 minute.
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If the fuel pressure remains constant, replace the fuel pump.
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If the fuel pressure drops, locate and replace the leaking fuel injector.
3. Relieve the fuel pressure to 69 kPa (10 psi). Verify that the fuel pressure does not decrease more than 14 kPa (2 psi) in 5 minutes.
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If the fuel pressure decreases more than the specified value, replace the fuel pump.
4. Remove the J 37287 and J 34730-1A. Refer to Fuel Pressure Gage Installation and Removal.
5. Operate the vehicle within the conditions of the customer concern while monitoring fuel related parameters with a scan tool.
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If the scan tool parameters indicate a lean condition, test/inspect for the following:
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Restricted fuel feed pipe
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Restricted fuel filter
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Restricted siphon jet pump
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Restricted transfer lines between fuel tanks
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Faulty fuel pressure regulator
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Poor connections at the harness connectors and ground circuits of the fuel pump
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If all components test normal and the scan tool parameters indicate a lean condition, replace the fuel pump.
Repair Instructions
Perform the Diagnostic Repair Verification - Vehicle Diagnostic Information after completing the diagnostic procedure.
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Primary Fuel Tank Module Replacement
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Fuel Injector and Fuel Rail Replacement
