How do I know if my transmission is leaking?

Asked By: Loriann Mugite | Last Updated: 10th June, 2020
Category: automotive auto parts
4.6/5 (32 Views . 17 Votes)
You can tell transmission fluid from other potential leaks by its color and consistency; it tends to be red and slippery with an oily smell. Transmission fluid that is browner in color or smells burnt is a clear indication your transmission needs servicing. You should also monitor how smoothly your transmission starts.

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Regarding this, how do you know if your transmission fluid is leaking?

How to Identify a Transmission Fluid Leak

  1. Identify the color of the leaking fluid. A transmission fluid leak is usually red.
  2. Identify the consistency and smell of the leaking fluid.
  3. Identify where the leaking fluid is dripping from.
  4. Pay attention to signs from your car.
  5. Remember that transmission fluid leaks can be avoided with regular maintenance.

One may also ask, why would my transmission be leaking? One of the main causes of a transmission fluid leak is a gap in your transmission. This is hard to narrow down as it could be a space in a pan gasket, torque converter, fluid lines, the transmission pan, or the seals. A car leaking transmission fluid can be caused by a leak in the pan.

Subsequently, one may also ask, how serious is a transmission leak?

If you are leaking transmission fluid from the pan directly onto the ground, the transmission leak is not that serious unless the vehicle is hemorrhaging it. If it is, than it's serious because running out or running low can cause some serious problems. Here are some common signs of low transmission fluid.

What are the symptoms of a bad transmission?

These 7 symptoms are classics of transmission problems:

  • Whining and Clunking. This may see fairly obvious, but those are often the symptoms we ignore the most.
  • Lack of Response.
  • Burning Smell.
  • Leaking Fluid.
  • Grinding Gears.
  • Noisy in Neutral.
  • Dashboard Lights.

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Can I drive my car with a transmission leak?

While it may not be especially dangerous to drive a vehicle that is leaking transmission fluid, it is not a good idea because the vehicle may not run properly. This is hard to narrow down as it could be a space in a pan gasket, torque converter, fluid lines, the transmission pan, or the seals.

Is a transmission leak expensive to fix?

Typical Cost to Fix a Transmission Fluid Leak. If you have fluid leaking from your transmission, the typical cost to repair the leak (without taking off the transmission) is between $150 and $200. For this amount, you will get a replacement of the pan bolts, drain plugs, seals, gasket, fluid lines.

Where would a transmission leak be?

Although there are multiple places on a vehicle where transmission fluid can leak, the 3 most common include: Pan gasket. Cooler lines. Output, tail, or torque converter seal.

What happens if you drive a car with low transmission fluid?

If a leak develops in your transmission system causing you to lose transmission fluid and you continue driving with low fluid levels you can permanently damage your car's transmission leading to costly repairs, rebuilds or replacements depending on the amount of damage.

How do you stop a transmission leak?


The last common leak area is the input or output seal in your transmission. If you discover a leak from a gasket or seal in your transmission, the best way to stop the leak is to simply add BlueDevil Transmission Sealer to your transmission fluid.

What are the symptoms of low transmission fluid?

Here are some low transmission fluid symptoms you should know about.
  • Trouble Shifting Gears. One of the reasons for having problems with the transmission is debris in the fluid.
  • Unusual Shifts.
  • Surging Transmission.
  • Delayed Gear Engagement.
  • Gear Slippage.
  • Transmission Becomes Overheated.

How much does it cost to replace a transmission seal?

Transmission Front Seal Replacement Cost
Repairs are starting to get pricey now. The front seal replacement varies by model, especially for those that the transmission is hard to remove and install. Expect $400 to $1,000 to change the transmission front seal.

Can a transmission leak be fixed?

Average Leak Repair Cost
The average cost to fix a transmission fluid leak that can be solved without removing the transmission is $150 to $200. This includes small repairs such as replacing fluid lines, gasket, seals, drain plugs or pan bolts.

How long can I drive with a transmission leak?

In most cases, it's probably not dangerous to drive your car if it's leaking transmission fluid. But, running your car with little to no transmission fluid can cause damage to your whole engine.

Is it safe to use Transmission Stop Leak?


Yes, Bar's Leaks is one of the only transmission stop leaks that is compatible with all petroleum-based transmission fluids including synthetics. Use in regular automatic or manual transmissions. Also safe to use in CVT transmissions.

Can a transmission leak cause the check engine light to come on?

Transmission problems can cause the check engine light to come on as well, however it's not always as apparent as other components within the vehicle. If there is a lack of response from your transmission, usually it is difficult for the vehicle owner to determine where the problem originated.

How much does it cost to fix a transmission?

Average Cost of Rebuild, Repair, and Replace:
According to Transmission Repair Cost Guide readers, the average cost of transmission replacement ranges from $1800 to $3400. A used/salvage transmission ranges from $800 to $1500, a rebuilt transmission from $1100 to $2800 and a remanufactured from $1300 to $3400.

How do you change a transmission seal?

How to Change a Transmission Seal
  1. Raise and support the vehicle on jack stands. Place the vehicle in neutral.
  2. Unbolt and remove the driveshaft universal c-clamps at the pinion.
  3. Place a container under the tail shaft to catch lost fluid. Pull the driveshaft out of the transmission.
  4. Remove the seal with the use of the seal remover.

What is the best transmission leak sealer?

BlueDevil Transmission Sealer
It's well known as it has produced dozens of products for all kinds of oil leaks. Most products of this company are proved to be effective, and BlueDevil Transmission Sealer is the best transmission leak sealer of BlueDevil Products. BlueDevil permanently stops the leak in transmissions.

How do you change a front transmission seal?


How to Remove the Front Seal From an Automatic Transmission
  1. Raise the front of the car to begin the repair process with the use of a car jack.
  2. Locate the front seal and remove everything that prevents your access to it.
  3. Use a screwdriver to pry out the driveshaft.
  4. Rub a bit of engine oil onto the outside edge of your seal.
  5. Reinstall the key next.

Can you lose transmission fluid without a leak?

If you are having to add fluid regularly then you do have a leak - transmission fluid doesn't just evaporate, it has to go somewhere for the level to go down. The leak may be small and hard to detect, but it will be there.

How long does it take to fix a leak in a car?

If your leak is from valve cover gasket, you're in luck. It USUALLY takes about 15 minutes on anything except the more odd of cars.