LEMON Manuals: Even more car manuals for everyone
Home >> Jaguar >> 2015 >> XFR-S >> Repair and Diagnosis >> External Pages >> Different car >> Section 104 (Engine Ignition - V6 S/C 3.0L Petrol -- XF/X250) >> Engine Ignition - V6 S/C 3.0L Petrol >> Diagnosis And Testing >> Engine Ignition >> Symptom Chart

Symptom Chart

WARNING: This page is about a different car, the 2015 Jaguar XF, 2014 Jaguar XF, and 2013 Jaguar XF. 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
  • Engine system fault
  • Engine breather system disconnected/restricted
  • 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 engine breather system. Rectify as necessary
Engine cranks and fires, but will not start
  • Engine system fault
  • Evaporative emissions system fault
  • Fuel system fault
  • Spark plugs fouled/worn
  • HT short to ground (tracking) check rubber boots for cracks/damage
  • 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 section of the service information and check the evaporative emissions system. Rectify as necessary
  • Refer to the relevant section of the service information and check the fuel system. Rectify as necessary
  • Check the spark plugs for cracks, damage, carbon build up, wet fouling, electrode gap too large/small, center electrode condition, ground electrode condition. Rectify as necessary
  • Check the ignition coil rubber boots for cracks/damage. Rectify as necessary
Engine difficult to start (cold engine)
  • Engine system fault
  • Engine coolant level and specific gravity
  • Battery/charging system fault
  • Fuel system fault
  • Evaporative emissions 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
  • Check the coolant level and specific gravity. Rectify as necessary
  • Refer to the relevant section of the service information and check the battery and charging system. Rectify as necessary
  • Refer to the relevant section of the service information and check the fuel system. Rectify as necessary
  • Refer to the relevant section of the service information and check the evaporative emissions system. Rectify as necessary
Engine difficult to start (warm/hot engine)
  • Engine system fault
  • Injector(s) leaking
  • Evaporative emissions system fault
  • Fuel 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
  • Check the injectors for leaks. Rectify as necessary
  • Refer to the relevant section of the service information and check the evaporative emissions system. Rectify as necessary
  • Refer to the relevant section of the service information and check the fuel system. Rectify as necessary
Engine difficult to start after hot soak (vehicle standing, engine off, after engine has reached operating temperature)
  • Engine system fault
  • Injector(s) leaking
  • Evaporative emissions system fault
  • Fuel 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
  • Check the injectors for leaks. Rectify as necessary
  • Refer to the relevant section of the service information and check the evaporative emissions system. Rectify as necessary
  • Refer to the relevant section of the service information and check the fuel system. Rectify as necessary
Engine stalls soon after start
  • Engine system fault
  • Engine breather system disconnected/restricted
  • Intake pipe restricted/blocked
  • Air filter element restricted/blocked
  • Intake pipe disconnected/damaged after the air cleaner
  • Fuel 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
  • Check the integrity of the engine breather 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 section of the service information and check the fuel system. Rectify as necessary
Engine hesitates/poor acceleration
  • Engine system fault
  • Fuel system fault
  • Injector(s) leaking
  • Intake pipe disconnected/damaged after the air cleaner
  • Transmission fault
  • Accelerator pedal movement restricted (carpet, mats, etc)
  • 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 section of the 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, heck the transmission control module for related DTCs and refer to the relevant DTC index
  • Check that the accelerator pedal is free from restriction. Rectify as necessary
Engine backfires
  • 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 section of the 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
Engine surges
  • Engine system fault
  • Fuel 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
  • Refer to the relevant section of the service information and check the fuel 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 section of the 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
  • Engine breather system disconnected/restricted
  • 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 engine breather 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