Land Rover transmission is one of the most expensive and important parts of a car. When a Land Rover transmission has a problem, even if it is just a small problem, it can greatly affect the performance of the entire transmission system. So what are the signs that this part is broken and how to fix it? Let’s follow the information shared by Eurocartool experts in the article below.
Land Rover transmission problems – Gearbox oil leak
The main function of lubricating oil in the gearbox is to lubricate, cool, reduce friction, improve Land Rover transmission efficiency, etc. When the gearbox is broken, the easiest thing to notice is the lubricant leaking out. outside. You can easily observe these Oil stains under the car or oil dripping under the car.
This condition often occurs due to aging of the gasket, warping of the seal, misalignment due to strong impact or opening of the gasket. Besides, the cause of the leak could also be due to the oil seal being used for a long time without being replaced or the seal being torn during disassembly.
Gearbox reduces sensitivity
It is difficult to detect reduced transmission sensitivity. By the time the problem was discovered, the failure had become more severe and serious with signs such as difficulty downshifting, slipping gears or not being able to shift gears,…
The gearbox is designed to help the driver change gears as quickly and efficiently as possible. Therefore, if you feel that the sensitivity when shifting gears is reduced and the transmission is still as fast as before, it means that the vehicle’s gearbox is having problems and needs to be checked and repaired.
- With a manual transmission, the driver can recognize this error through the vehicle’s inertia. If you change gears and the rpm range increases but the car still feels sluggish and does not achieve the same performance as before, the transmission is most likely faulty.
- With the automatic transmission, the lack of agility is most clearly shown in the two driving modes D – Drive and P – Park. If while driving, the automatic transmission driver finds it difficult to switch from other modes to these two modes, it means the transmission is having problems and needs to be checked to know the cause.
The car vibrates, the gear lever vibrates
The driver can feel different vibrations between each type of gearbox.With a manual Land Rover transmission, the car often vibrates when shifting to a new gear. The same goes for the automatic transmission, most noticeable when the vehicle accelerates and decelerates.
Besides, the driver will easily notice that the actual speed of the vehicle does not correspond to the speed of the engine. The reason may be due to corroded gears, belts, rotating shafts, friction discs or damaged electronic valves that open any gear.
The car is slipping/jumping gears
Under normal operating conditions, the vehicle will run with the gear the driver selects until a new adjustment is made. If the transmission is faulty, the vehicle will automatically change gears without the driver’s control.even manually push the gear shift lever to 0.
Manual transmission cars slip gears mainly because the clutch slips. There are many causes of clutch slippage such as:
- Friction discs, pressure discs, bit bearings, flywheel bearings… are worn out. According to the manufacturer’s recommendation, you should replace the friction disc every 30,000 – 50,000 km. If you frequently rest your foot on the clutch pedal when not in use, it will also cause the friction disc to wear out quickly.
- The friction disc is stained with oil due to leaking transmission oil, causing the clutch to slip.
- The pressure disc is weak, the spring on the pressure disc is broken and not strong enough, causing the friction disc to slip.
The way to check whether the manual clutch is slipping or not is very simple, the driver puts the car in 3rd gear and starts the engine. In case the clutch does not move, it is normal. If the clutch slips, the vehicle speed will automatically increase, the vehicle will move on its own and there will be a burning smell in the engine compartment.
In addition, the error of a vehicle slipping out of gear is also quite common in automatic transmission vehicles, especially CVT transmissions. When operating normally, the car will automatically change gears according to speed. However, when the transmission slips, the engine cannot transmit power to the wheels.
This causes the vehicle speed to be incompatible with the engine speed. The cause of the error in the automatic transmission may be due to leaking transmission oil that seals the primary shaft and bridge seal.
A vehicle with a slipping transmission is quite dangerous because it can cause the driver to lose control of the vehicle, making it difficult to be proactive in emergency situations. Therefore, if your vehicle has slipping gear, you need to immediately take the vehicle to a warranty center for processing to avoid unwanted problems.
The car has difficulty shifting into gear/cannot shift into gear
The problem of difficulty shifting into gear is often seen in manual Land Rover transmission. At this point, it will be difficult or impossible for you to change from one gear to another, even the automatic gear to N even though you have stopped pressing the clutch and pushing the gear lever. If the car has difficulty shifting into gear or cannot go into gear, it may be due to the following reasons:
- The gear shift cable is loose or worn, the synchronizer is worn…
- The car is leaking transmission oil because of low oil level, the car has not changed the oil for a long time so the oil is dry or the oil has degraded, changing the oil of the wrong type…
- The Gearbox sensor is faulty. With automatic transmission cars, the transmission sensor plays a very important role in helping the electronic controller provide appropriate gear shifting. If the vehicle has a faulty transmission sensor, it means shifting gears will also have problems
- Vacuum hose clogged, disconnected…
- Broken one-way joint or damaged turbine blade inside the gearbox torque converter
- The clutch is broken
The car makes a noise when it goes into gear
With this error, when you shift gears back When shifting gears (especially when the car is in 1st gear), the car will make a hissing sound, a short squeaking sound, a clicking sound, or other jamming sounds.
The most common cause of noise in the gearbox is lack of lubricant in the gearbox. In the gearbox, when the gears are constantly rubbing and the amount of lubricating oil is low or the lubricant is not up to standard, it will cause noise. With manual transmission vehicles, if a jamming noise occurs even when the clutch is completely cut off, it is most likely due to lack of transmission oil.
Squealing noises in the transmission can also be caused by worn transmission gears. Particularly for manual transmission vehicles, you can check if there is a noise in any gear position, there is a high possibility that the gear at that gear level is worn.
There are also a number of reasons why a car’s gearbox makes noise such as: worn synchronizer, incorrectly placed gearbox, worn bearings… Besides, it can also be due to a number of other reasons such as: matching the driveshaft. The inside is worn out, the tripod rubber or gearbox is loose, the differential has problems…
The car has a burning smell
When driving a manual or automatic vehicle, if you smell a burning smell in the car, it is most likely due to the Land Rover transmission. The reason the transmission has a burning smell is mainly because the transmission oil is overheating.
The main task of gear oil is lubrication. But lubricant also helps cool and circulate heat during transmission operation. If there is a lack of oil or the oil is not of good quality, it can cause the oil to overheat, become hot, burn and deteriorate badly… causing a burning or burning smell.
If this condition persists for a long time, it will damage the details inside the gearbox and affect the gearbox’s ability to operate. To fix this, you should urgently check the gearbox oil and add or replace the oil if necessary. Normally, transmission oil is red. If the oil turns black, blue or dark brown, it needs to be replaced.
A burning smell can also originate from the clutch in manual transmission vehicles. Improper use of the cone can also cause a burning smell. Because at this time, the cone pads will be subjected to extremely high friction and from there will produce a burning smell. Therefore, the driver needs to pay special attention to controlling the vehicle’s clutch pedal.
Above are the basic symptoms when Land Rover transmission is broken. These errors can be fixed by replacing new parts or performing codding by Pathfinder software or SDD software to fix electronic errors. If you don’t have enough tools or don’t have time to do it, let Eurcartool experts support you via WhatsApp: +13155472355