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What are the reasons for the difficulty in starting a Land Rover Freelander 2 when it's hot?

1 Answers

StJordan

07/29/25 3:39pm

Introduction to the reasons for the difficulty in starting a Land Rover Freelander 2 when it's hot: 1. Fuel injector leakage: The fuel injector sprays fuel normally, but leakage means additional fuel supply, so the more severe the fuel injector leakage, the richer the air-fuel mixture, leading to difficulty in starting when hot. 2. Damaged carbon canister solenoid valve: During hot starts, fuel atomization is normal and no additional fuel vapor is needed. If the carbon canister continues to supply fuel vapor to the intake tract, it will cause an overly rich air-fuel mixture, making it difficult to start. 3. Fuel quality: After the hot engine is turned off for a while, the engine compartment temperature remains high. If the fuel is highly volatile, it can form high vapor pressure in the fuel rail. When this pressure exceeds the fuel supply system's pressure, vapor lock occurs, causing the fuel injector to spray overly lean fuel vapor, leading to difficulty in starting. 4. Intake air temperature sensor: The intake air temperature sensor is similar to the coolant temperature sensor, both correcting the fuel injection amount. However, if the coolant temperature sensor fails, it causes difficulty in cold starts, while a faulty intake air temperature sensor leads to difficulty in hot starts. 5. Engine carbon deposits: Carbon deposits have a strong adsorption effect on gasoline. If there are significant carbon deposits on the intake valves, throttle, or pistons, they can adsorb some fuel, causing an overly lean air-fuel mixture and affecting starting. This issue can also occur during cold starts.

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