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Home >> Jeep >> 2023 >> Grand Cherokee Altitude, AWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 39 (2.0L - DTCS P0004 To P0087) >> DTC Troubleshooting >> P0087 Fuel Rail Pressure Too Low - Bank 1 >> Possible Causes

Possible Causes

WARNING: This page is about a different variant/trim than selected.
Possible Causes
HIGH PRESSURE FUEL SYSTEM LEAK AT THE SUPPLY TUBE OR INJECTORS
LOW PRESSURE FUEL SYSTEM LEAK / RESTRICTION / LOW PRESSURE ISSUE
HIGH RESISTANCE IN THE FUEL RAIL PRESSURE SENSOR 5-VOLT SUPPLY CIRCUIT
HIGH RESISTANCE IN THE FUEL RAIL PRESSURE SENSOR GROUND CIRCUIT
HIGH RESISTANCE IN THE FUEL QUANTITY SOLENOID HIGH SIDE CONTROL CIRCUIT
HIGH RESISTANCE IN THE FUEL QUANTITY SOLENOID LOW SIDE CONTROL CIRCUIT
FUEL RAIL PRESSURE SENSOR
FAULTY FUEL PUMP MODULE IN THE LOW PRESSURE FUEL SYSTEM
FUEL QUANTITY SOLENOID/HIGH PRESSURE FUEL PUMP ASSEMBLY

Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding. Refer to  PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE  .