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What causes Transmission Over Temp on a Jeep Grand Cherokee?

What causes Transmission Over Temp on a Jeep Grand Cherokee?

Transmission over temp is a notification that appears on the gauge cluster and indicates transmission problems. You cannot drive a jeep grand Cherokee with this warning sign because it affects the speed and braking system.

What causes Transmission Over Temp on a Jeep Grand Cherokee? The causes of transmission over temp on a Jeep Grand Cherokee include low fluid levels, malfunctioning radiator, overheated fluid, multiple stops, malfunctioning torque converter, broken solenoid, and faulty sensors.

With the gauge light, stop the SUV alongside the road, leave the system for 15 to 17 minutes and allow natural cooling. Constant driving with a heated transmission can cause fluid leakage and reduced performance of the gearbox.

I have explained the following causes of this notification. However, you can troubleshoot and resolve internal problems with mechanical help and DIY methods.

Low levels of fluid causes transmission over temp

The transmission fluid capacity of the jeep Cherokee transmission is around 6.2 to 6.3 quarts. The stabilized level of the fluid is essential for the continuous performance of the gearbox.

Due to a broken pan gasket, the fluid leaks inside the system. It decreases the level of fluid and causes the warning light.

Also, due to a cracked seal of the pan, the sign appears on the gauge. With the light, adjust the jeep Cherokee in a garage, open the hood and hold the dipstick. 

Clean it with a soft cloth and insert it inside the transmission. Pull it, check the liquid level and fill it with the compatible fluid. 

Transmission over temp due to malfunctioning radiator

Radiators can reduce the high temperatures of the transmission and engine and keep them cool. They regulate the flow of fluid in different flowing passages. 

But, internal leakage of the radiator causes malfunctioning. As a result, it cannot cool down the transmission and results in a warning light. 

You cannot drive the Jeep Grand Cherokee with a malfunctioning radiator because it cannot reduce the heat levels. As a result, the gearbox undergoes catastrophic failures and triggers the warning sign on the gauge cluster.

To resolve the fault, repair the seals and stop the internal leakage. Also, replace the broken radiator with a compatible option. Finally, stabilize the cooling mechanism and remove the warning light from the gauge. 

Overheated fluid in Jeep Grand Cherokee

Excessive burn and fluid contamination increase its temperature. As a result, it cannot flow accurately inside the flowing lines. 

The mixing and accumulation of debris in the liquid alter its composition. The overheated lubricant causes the sign on the gauge.

You cannot filter the liquid, and replacement is essential for standard efficiency. However, it requires replacement after 13 to 17 months.

You can change the overheated fluid by draining the transmission. Then, fill the hose with an adequate amount of purified and compatible liquid.

Multiple stops cause transmission over temp

It is a complex system that connects with the engine and wheels of the Jeep Grand Cherokee. It can regulate the shifting of gears at different speed conditions. 

But, a few people start and stop their SUVs frequently. It decreases the overall performance of the gearbox with frequent gear shifts.

The lubricant becomes thin and cannot support the system. Moreover, jump starts and sudden gear shifting reduce the work efficiency of the gearbox.

As a result, a warning notification appears on the dashboard, which indicates the malfunctioning of the gear equipment. 

You can resolve the problem by reducing the frequent start and stop conditions. Stabilize the equipment with a single-gear shift. Also, run it at a particular gear at different speed levels. 

Overheated engine and strain cause transmission over temp

The engine and transmission system of the jeep grand Cherokee connects due to correlated performances. The clutch and flywheel of the gearbox connect with the engine and regulate its performance.

A Clutch can disengage the gearbox from the engine. The external temperature and internal heat of the engine reduce its efficiency. 

The overheated engine puts excessive strain on the gearbox. As a result, it cannot work under these pressurized conditions and require cooling. 

You can remove the problem by parking the SUV in a shady and cool place.

Then, switch on the radiator system and allow its cooling for 10 to 15 minutes. It reduces the strain on the shifters and stabilizes the performance.

Malfunctioning torque converter

A torque converter can take the pressurized power from the engine and transfer it to the transmission to shift gears. A slipping torque converter can heat the internal lubricant and overheat the engine.

It is not compatible with the wrong lubricants. In addition, a malfunctioning torque converter can damage the overall equipment.

It leads to excessive internal leakage that reduces the level of lubricant. In addition, replacing the faulty torque converter can remove the warning light from the front gauge. 

For this purpose, stabilize the SUV, turn off the power supply, and approach the torque converter.

Then, unbolt it by removing the bolts with the correct size wrench and reinstalling the new option. You can perform the replacement for around $620 to $999. 

Broken solenoid leads to transmission over temp

The factory-installed solenoid of the transmission is a hydraulically controlled valve that regulates the flow of lubricant inside the equipment. 

They are electronically empowered and can open and shut without manual control. The computerized controller of the SUV inspects and monitors its performance. 

It can break due to excessive current pressure and the accumulation of contaminants. As a result, it increases the temperature of the gearbox. 

A faulty solenoid triggers the alarming sign, and you can replace it to remove the notification. Turn off the electric flow of your Jeep Grand Cherokee, loosen the filling plug, and drain the lubricant. 

Remove the fluid hose by unbolting the screws. Then, detach the fixed plates inside the system and attach the new valve with the housing assembly.

Pry off the old solenoid, attach a new valve and reassemble the bolts, screws, and plates.

Damaged speed sensors

A faulty or broken speed sensor can affect the performance of the automatic transmission. These sensors can monitor and calculate the speed levels of the SUV. 

Sometimes, faulty sensors can increase the severity of problems with mixed and false signals. For example, the failure of gear shifters happens due to non-cooperative sensors.

They can alter the response of the shifter toward the input signs. In these conditions, their replacement is essential. 

Unbolt the wheels from the frame, approach the speed sensor, disconnect the electric wiring and replace the old sensor with a compatible option. 

Due to the heavyweight hauling, the internal cooling system of the gearbox cannot reduce the heat levels. As a result, the fluid and system overheat and trigger the light.

To remove the notification, stabilize the loading weight according to the carrying capacity of the SUV.

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