Q: Transmission pan leak

asked by on

I changed to gasket (rubber) and filter during the summer. This fall the dip stick broke off and I had to drop the pan to get the tip. I reused the same gasket and sealed it back up. It kept leaking, so I resolved to buy a new gasket (cork Victor Reinz) and put some copper sealant around the gasket and pan. I put it on and everything was good until I drove it around for awhile. I arrived at my destination and found a considerable amount leaking out (1 drip ever 7sec). I had to retighten everything, not sure if I was leaking because it just needed to be retightened. As of now, I'm keeping an eye on everything. Do I need to try and shift the pan? Could it be from the dipstick tube? Is there a sequence which I should tighten everything, any suggestions would be very helpful. I don't want to drop the pan again if I can help it.
Thank you.

My car has 83000 miles.
My car has an automatic transmission.

Hello. If the gasket and sealant were applied and allowed to cure properly then you should not need to shift the pan in any sort of way. If the gasket is leaking then re torquing the bolts may repair the issue if the leak is coming from a space on the pan near one of the bolts. If the leak is coming from somewhere else, such as the dipstick tube, then tightening the pan bolts will not have resolve the issue. After tightening the bolts I would carefully inspect the vehicle to see if there are any more leaks, and if there are, trace them back to the source. If the leak is from the pan, and continues to leak even after being re torqued then it may be possible that the pan needs to be resealed, perhaps with a new gasket. If the leak is from the pan, and you do not wish to service it again I would recommend having a professional technician, such as one from YourMechanic, visit your location to replace the transmission oil pan gasket.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Transmission pan leak

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Bubbles and pressure in the overflow tank

If the coolant level was low due to a leak, such leaks can be found during a leak diagnostic with simple pressure testing. If the cooling system doesn't maintain pressure, and no external leak is visible, coolant could be leaking...

Q: How Long Does Transmission Fluid Last?

The best guideline for when to change automatic transmission fluid comes from the manufacturer of the transmission itself. The owner’s manual for each vehicle provides the recommended mileage intervals for service. Typical recommendations generally range from 30,000 to 60,000 miles....

Q: Q: I have water and fuel in my oil

You most likely have a coolant leak into the engine through an intake or a head gasket leaking. If you have water in the oil it may damage the crankshaft bearings if ran too long with the water in the...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...