Torrent AWD V6-3.6L (2008)
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If the scan tool parameters do not indicate a lean condition, refer to Symptoms - Computers and Control Systems. See: Computers and Control
Systems/Testing and Inspection/Initial Inspection and Diagnostic Overview
Circuit/System Testing
1. Ignition ON, command the fuel pump relay ON with a scan tool and observe the fuel pressure while the fuel pump is operating. Verify the fuel
pressure is between 380-410 kPa (55-60 psi).
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If the fuel pressure is more than the specified range, replace the fuel pump.
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If the fuel pressure is less than the specified range, remove the fuel tank and test/inspect for the following:
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Restricted fuel feed pipe
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Restricted or plugged fuel filter
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Restricted or plugged strainer
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Stuck or binding fuel level float
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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 you find a condition, repair as necessary.
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If all components test normal, replace the fuel pump.
Important: 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:
1. Ignition OFF, relieve the fuel pressure. Refer to Fuel Pressure Relief (With CH 48027) Fuel Pressure Relief (Without CH 48027).
2. Install the J 37287 between the fuel feed pipe and the fuel rail.
3. Open the valve on the J 37287.
4. Bleed the air from the fuel pressure gage.
5. Close the valve on the J 37287.
6. 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.
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 after completing the diagnostic procedure. See: Computers and Control Systems/Testing and
Inspection/Diagnostic Trouble Code Tests and Associated Procedures/Verification Tests and Procedures
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Primary Fuel Tank Module Replacement
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Fuel Injector and Fuel Rail Replacement
