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Transmissions and Drivetrains
Transmission Fluid

Why would your car leak transmission fluid?


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Wiki User
2005-02-14 19:36:40
2005-02-14 19:36:40

you could have a bad transmission pan gasket which is cheap and easy to fix yourself, or you need a new one. Besides the transmission pan gasket, there are other places the transmission could be leaking from: INPUT SHAFT: fluid would be coming out form the front of the tranny close to the engine. OUTPUT SHAFTS: fluid would be noticed directly below the driveshaft where it connects to the tranny or a rear-wheel-drive vehicle or the left and right axleshaft of front-wheel-drive vehicles. OTHER: tailhousing gasket, speedometer gear input seal, shifter housing seal/gasket, and any other mating surface which has a gasket or seal in it depending on particular vehicle.

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Transmission fluid can leak from many places. It could leak from the actual transmission itself, or any of the tubing that goes from the transmission to other parts of the car.

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One of the most important fluids in your car is the transmission fluid. There is no way around getting your car to run properly without transmission fluid. This fluid is what makes your transmission turn and the gears shift. If you have a leak and there is little of no fluid in your transmission, then your car will not move. There are some signs you can look for if you think your car is low on fluid.If you have a large piece of cardboard, you can place it under the car. This will let you know if there is any fluid leaking form under the car. Leave the board under the car for at least a day in order to see if anything is leaking. Take the board out from under the car and look to see if there is any fluid on the board. If there is, you need to examine to see what kind of fluid it is. It if it red, then it is most likely transmission fluid.When you discover there is a transmission fluid leak, you will need to have it looked at by a mechanic immediately. Some leaks are not detectable until the mechanic looks underneath the car. You could also have an internal leak that is not showing up under the car. The fluid could be going to your oil reserve or to another part of the car. Sometimes when you have your transmission fluid changed, the bolt may not be tight enough and some fluid will leak around it. All you have to do is take it back to the mechanic and get them to tighten the bolt. If the fluid leak is large, you will either need to get the gasket changed or find out where the fluid is going. Do not run a car longer than necessary with no transmission fluid. This will damage the transmission more than if you would just get the fluid leak fixed.

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Sometimes when a vehicle is stored for aperiod of time transmission seals shrink and start to leak from lack of use

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Are you asking the cause of the leak or cause of the not moving problem. If your fluid is low that may be the problem right there. YOU CAN BURN OUT A TRANSMISSION BY NOT KEEPING FLUID FULL!!!


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