2003 Land Rover Discovery Common Problems
| Brakes |
No common problems reported. |
| Drive Train |
- The transfer case can develop oil leaks from the intermediate shaft and the access plates.
- Internal failure of the front differential can cause a condition where the vehicle may be in gear but does not move ("no drive condition").
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| Engine |
- The engine oil pan and valve cover gaskets tend to develop oil leaks.
- Low coolant levels can be caused by leaking head gaskets and/or failed cylinder liners. Misfires or engine performance issues usually accompany these problems.
- Coolant leaks from under the middle of the vehicle can be caused by a leaking throttle body deicer. Coolant travels down the engine towards the rear before dripping to the ground.
- The intake manifold can leak coolant externally, however it is not typically due to a gasket failure. The intake manifold bolts tend to come loose and need to be replaced/updated.
- A sticking thermostat can cause the engine cooling fans to operate even if they are not needed for cooling.
- A clogged or restricted radiator can cause the engine to run hotter than normal or overheat. A temperature change away from normal would be seen on the temperature gauge.
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| Exhaust & Emissions |
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| Electrical & Lights |
- A sticking windshield wiper switch can cause a delay in wiper operation, especially in cold weather.
- If a brake light is not working, and the bulb is good, the brake light socket should be inspected because they can "burn out".
- A sticky ignition switch can cause the keys to become stuck, and possibly break during operation.
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| Miscellaneous |
- Internal failure of the rear cargo door latch can cause the door to not open when using the outside door handle.
- A worn window regulator can cause the power windows to be inoperative.
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| Suspension & Steering |
Uneven ride height on the vehicle can be caused by leaking air springs.
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| Heating & Air Conditioning |
No common problems reported. |
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