LEMON Manuals: Even more car manuals for everyone
Home >> Land Rover >> 2013 >> LR4 HSE >> Repair and Diagnosis >> External Pages >> Different car >> Section 110 (Fuel Tank & Lines - V6 S/C 3.0L Petrol -- LR4/L319) >> Fuel Tank And Lines - V6 S/C 3.0L Petrol >> Fuel Tank And Lines (Diagnosis And Testing) >> Diagnosis And Testing >> Symptom Chart

Symptom Chart

WARNING: This page is about a different car, the 2016 Land Rover LR4, 2015 Land Rover LR4, and 2014 Land Rover LR4. However, it is still accessible from the selected car via links, so may be relevant.
SYMPTOM POSSIBLE CAUSES ACTION
Engine cranks but does not start
  • Positive crankcase ventilation system leaking/blocked
  • Ignition system fault
  • Fuel system fault
  • Engine system fault
  • Check the integrity of the positive crankcase ventilation system. Rectify as necessary
  • Refer to the relevant service information and check the ignition system. Rectify as necessary
  • Refer to the relevant service information and check the fuel system. Rectify as necessary
  • Using the Jaguar Land Rover approved diagnostic equipment, check the powertrain control module for related DTCs and refer to the relevant DTC index
Engine cranks and fires, but will not start
  • Evaporative emissions system fault
  • Ignition system fault
  • Fuel system fault
  • Engine system fault
  • Refer to the relevant service information and check the evaporative emissions system. Rectify as necessary
  • Refer to the relevant service information and check the ignition system. Rectify as necessary
  • Refer to the relevant service information and check the fuel system. Rectify as necessary
  • Using the Jaguar Land Rover approved diagnostic equipment, check the powertrain control module for related DTCs and refer to the relevant DTC index
Engine difficult to start (cold engine)
  • Battery/charging system fault
  • Engine system fault
  • Fuel system fault
  • Evaporative emissions system fault
  • Refer to the relevant service information and check the battery and charging system. Rectify as necessary
  • Using the Jaguar Land Rover approved diagnostic equipment, check the powertrain control module for related DTCs and refer to the relevant DTC index
  • Refer to the relevant service information and check the fuel system. Rectify as necessary
  • Refer to the relevant service information and check the evaporative emissions system. Rectify as necessary
Engine difficult to start (warm/hot engine)
  • Injector(s) leaking
  • Engine system fault
  • Evaporative emissions system fault
  • Fuel system fault
  • Ignition system fault
  • Check the injectors for leaks. Rectify as necessary
  • Using the Jaguar Land Rover approved diagnostic equipment, check the powertrain control module for related DTCs and refer to the relevant DTC index
  • Refer to the relevant service information and check the evaporative emissions system. Rectify as necessary
  • Refer to the relevant service information and check the fuel system. Rectify as necessary
  • Refer to the relevant service information and check the ignition system. Rectify as necessary
Engine difficult to start after hot soak (vehicle standing, engine off, after engine has reached operating temperature)
  • Injector(s) leaking
  • Engine system fault
  • Evaporative emissions system fault
  • Fuel system fault
  • Ignition system fault
  • Check the injectors for leaks. Rectify as necessary
  • Using the Jaguar Land Rover approved diagnostic equipment, check the powertrain control module for related DTCs and refer to the relevant DTC index
  • Refer to the relevant service information and check the evaporative emissions system. Rectify as necessary
  • Refer to the relevant service information and check the fuel system. Rectify as necessary
  • Refer to the relevant service information and check the ignition system. Rectify as necessary
Engine stalls soon after start
  • Positive crankcase ventilation system leaking/blocked
  • Engine system fault
  • Ignition system fault
  • Intake pipe restricted/blocked
  • Air filter element restricted/blocked
  • Intake pipe disconnected/damaged after the air cleaner
  • Fuel system fault
  • Check the integrity of the positive crankcase ventilation system. Rectify as necessary
  • Using the Jaguar Land Rover approved diagnostic equipment, check the powertrain control module for related DTCs and refer to the relevant DTC index
  • Refer to the relevant service information and check the ignition system. Rectify as necessary
  • Check the intake pipe for restrictions and blockages. Rectify as necessary
  • Install a new air filter element as necessary
  • Check the intake system for correct installation and damage. Rectify as necessary
  • Refer to the relevant service information and check the fuel system. Rectify as necessary
Engine hesitates/poor acceleration
  • Fuel system fault
  • Injector(s) leaking
  • Intake pipe disconnected/damaged after the air cleaner
  • Engine system fault
  • Accelerator pedal movement restricted (carpet, mats, etc)
  • Ignition system fault
  • Transmission fault
  • Refer to the relevant service information and check the fuel system. Rectify as necessary
  • Check the injectors for leaks. Rectify as necessary
  • Check the intake system for correct installation and damage. Rectify as necessary
  • Using the Jaguar Land Rover approved diagnostic equipment, check the powertrain control module for related DTCs and refer to the relevant DTC index
  • Check that the accelerator pedal is free from restriction. Rectify as necessary
  • Refer to the relevant service information and check the ignition system. Rectify as necessary
  • Using the Jaguar Land Rover approved diagnostic equipment, check the transmission control module for related DTCs and refer to the relevant DTC index
Engine backfires
  • Fuel system fault
  • Intake pipe disconnected/damaged after the air cleaner
  • Engine system fault
  • Ignition system fault
  • Variable camshaft timing system stuck active
  • Refer to the relevant service information and check the fuel system. Rectify as necessary
  • Check the intake system for correct installation and damage. Rectify as necessary
  • Using the Jaguar Land Rover approved diagnostic equipment, check the powertrain control module for related DTCs and refer to the relevant DTC index
  • Refer to the relevant service information and check the ignition system. Rectify as necessary
  • Check the operation of the variable camshaft timing system. Rectify as necessary
Engine surges
  • Fuel system fault
  • Engine system fault
  • Ignition system fault
  • Refer to the relevant service information and check the fuel system. Rectify as necessary
  • Using the Jaguar Land Rover approved diagnostic equipment, check the powertrain control module for related DTCs and refer to the relevant DTC index
  • Refer to the relevant service information and check the ignition system. Rectify as necessary
Engine detonates/knocks
  • Engine system fault
  • Fuel system fault
  • Intake pipe disconnected/damaged after the air cleaner
  • Variable camshaft timing system stuck active
  • Using the Jaguar Land Rover approved diagnostic equipment, check the powertrain control module for related DTCs and refer to the relevant DTC index
  • Refer to the relevant service information and check the fuel system. Rectify as necessary
  • Check the intake system for correct installation and damage. Rectify as necessary
  • Check the operation of the variable camshaft timing system. Rectify as necessary
No throttle response
  • Engine system fault
  • Using the Jaguar Land Rover approved diagnostic equipment, check the powertrain control module for related DTCs and refer to the relevant DTC index
Throttle response poor
  • Engine system fault
  • Positive crankcase ventilation system leaking/blocked
  • Transmission fault
  • Dynamic stability control event
  • Intake pipe disconnected/damaged after the air cleaner
  • Using the Jaguar Land Rover approved diagnostic equipment, check the powertrain control module for related DTCs and refer to the relevant DTC index
  • Check the integrity of the positive crankcase ventilation system. Rectify as necessary
  • Using the Jaguar Land Rover approved diagnostic equipment, check the transmission control module for related DTCs and refer to the relevant DTC index
  • No fault - Accelerator pedal response may be temporarily reduced or inhibited when the dynamic stability control is active
  • Check the intake system for correct installation and damage. Rectify as necessary
Fuel gauge reading empty with fuel in the fuel tank
  • Active fuel level sensor circuit open circuit
  • Passive fuel level sensor circuit open circuit
  • Instrument cluster internal failure
  • Refer to the appropriate system wiring diagrams and check the active fuel level sensor circuit for open circuit, high resistance. Repair the wiring harness or install a new active fuel level sensor as necessary
  • Refer to the appropriate system wiring diagrams and check the passive fuel level sensor circuit for open circuit, high resistance. Repair the wiring harness or install a new passive fuel level sensor as necessary
  • Using the Jaguar Land Rover approved diagnostic equipment, perform routine - Fuel Level Sensor Test
Fuel gauge not reading empty with no fuel in the fuel tank
  • Jet pump fault or fuel crossover tube blocked or leaking
  • Using the Jaguar Land Rover approved diagnostic equipment, check datalogger signals - Fuel Level Sensor Pump/Active/A (0xD908) - Fuel Level Sensor Eject/Passive/B (0xD907). If the right sensor reads empty when the left sensor reads more than empty, check that the jet pump is transferring fuel from the left side to the right side. Rectify as necessary