Symptom Chart

SYMPTOM	POSSIBLE CAUSES	ACTION
Engine cranks, but does not fire	Positive crankcase ventilation system blocked/leaking Engine 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 DTC s and refer to the relevant DTC index
Engine cranks and fires, but will not start	Evaporative emissions system fault Engine system fault	Refer to the relevant service information and check the purge valve Using the Jaguar Land Rover approved diagnostic equipment, check the powertrain control module for related DTC s and refer to the relevant DTC index
Difficult cold start	Engine coolant level/anti-freeze content Battery/charging system fault Engine system fault Evaporative emissions system fault	Check the engine coolant level and condition. Rectify as necessary 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 DTC s and refer to the relevant DTC index Refer to the relevant service information and check the evaporative emissions system. Rectify as necessary
Difficult hot start	Fuel injector leaking Engine system fault Evaporative emissions system fault	Check the fuel injectors for leaks. Rectify as necessary Using the Jaguar Land Rover approved diagnostic equipment, check the powertrain control module for related DTC s and refer to the relevant DTC index Refer to the relevant service information and check the evaporative emissions system. Rectify as necessary
Difficult to start after hot soak (vehicle standing, engine off, after engine has reached operating temperature)	Fuel injector leaking Engine system fault Evaporative emissions system fault	Check the fuel injectors for leaks. Rectify as necessary Using the Jaguar Land Rover approved diagnostic equipment, check the powertrain control module for related DTC s and refer to the relevant DTC index Refer to the relevant service information and check the evaporative emissions system. Rectify as necessary
Engine stalls soon after start	Positive crankcase ventilation system blocked/leaking Engine system fault Intake air system leaking/restricted	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 DTC s and refer to the relevant DTC index Check the intake air system for leaks and restrictions. Rectify as necessary
Engine hesitates/poor acceleration	Fuel injector leaking Engine system fault Transmission system fault Intake air system leaking/restricted Accelerator pedal movement restricted (carpet, mats, etc)	Check the fuel injectors for leaks. Rectify as necessary Using the Jaguar Land Rover approved diagnostic equipment, check the powertrain control module for related DTC s and refer to the relevant DTC index Using the Jaguar Land Rover approved diagnostic equipment, check the transmission control module for related DTC s and refer to the relevant DTC index Check the intake air system for leaks and restrictions. Rectify as necessary Check that the accelerator pedal is free from restriction. Rectify as necessary
Engine backfires	Intake air system leaking/restricted Engine system fault	Check the intake air system for leaks and restrictions. Rectify as necessary Using the Jaguar Land Rover approved diagnostic equipment, check the powertrain control module for related DTC s and refer to the relevant DTC index
Engine surges	Engine system fault	Using the Jaguar Land Rover approved diagnostic equipment, check the powertrain control module for related DTC s and refer to the relevant DTC index
Engine detonates/knocks	Intake air system leaking/restricted Engine system fault	Check the intake air system for leaks and restrictions. Rectify as necessary Using the Jaguar Land Rover approved diagnostic equipment, check the powertrain control module for related DTC s and refer to the relevant DTC index
No throttle response	Engine system fault	Using the Jaguar Land Rover approved diagnostic equipment, check the powertrain control module for related DTC s and refer to the relevant DTC index
Poor throttle response	Positive crankcase ventilation system blocked/leaking Engine system fault Transmission system fault Intake air system leaking/restricted	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 DTC s and refer to the relevant DTC index Using the Jaguar Land Rover approved diagnostic equipment, check the transmission control module for related DTC s and refer to the relevant DTC index Check the intake air system for leaks and restrictions. Rectify as necessary
NOTE: This symptom/action is only applicable to the following vehicles - Discovery Sport (L550) 18-20MY up to Vehicle Identification Number (VIN) SALCT2FX7MH882806 - Range Rover Evoque (L551) 20MY up to VIN SALZA2AXXMH121887 Vehicle has low idle speed when stationary (typically 400RPM) and when load is then applied to pull away the engine will stop	Low fuel quality (lower than handbook requirements) combined with higher temperatures or altitude leads to engine knock control being active Powertrain Control Module (PCM) software is not at latest version	NOTE: Please make sure that the Jaguar Land Rover approved diagnostic equipment is updated to a minimum of Pathfinder 327 or later Using the Jaguar Land Rover approved diagnostic equipment, run application - ECU Diagnostics/Powertrain Control Module/Update ECU
Malfunction Indicator Lamp (MIL) illuminated on the instrument cluster and DTC P144B-00 "Evaporative Emission System Secondary Purge Vapor Line Restricted/Blocked - No sub type information" set within the PCM	PCM software requires updating Purge valve electrical fault Purge pressure sensor electrical fault Boost pressure below target Purge valve blockages Air leaks	GO to PINPOINT TEST A .