Skip the auto shop - Our mechanics make house calls

Q: Transmission leak - 2005 Jeep Grand Cherokee

asked by on

I notice there is a small leak (small drop) under my car it seems its coming from the transmission gear box. However it only seams to leak when the car is running, have checked when parked and it doesn't seem to leak as much. I have checked the transmission oil and there doesn't seem to be a problem. Transmission seems to shift smoothly. What would you think is the problem?

My car has 99300 miles.
My car has an automatic transmission.

A: This is not uncommon for the transmission t...

This is not uncommon for the transmission to leak only when the car is running. This usually occurs when there is hydraulic pressure inside the transmission, which happens when the engine is running. When the leak is very small, enough hydraulic pressure may cause it to leak when pressure is applied to the leak area.

I would recommend having an expert, such as one from YourMechanic, come to your location to diagnose your transmission leak and suggest the needed repairs.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

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: Why does a crackling , popping sound come from my vents when I turn on the account or heat .

When you command air conditioning or heat there are mode doors that direct the airflow to the requested place. Positions are floor, windshield, vent /floor, and defrost/floor. The doors move in a housing that has a tight fit. These doors...

Q: How often should I change my transmission fluid?

Honda recommends the transmission fluid be changed every 37,500 miles under "severe" conditions and every 120,000 under "normal" conditions. In my 30+ years of working on vehicles and maintaining my own vehicles, I recommend a more in the middle schedule....

Q: Car running hot

The coolant may not be leaking, but fumes from the overflow can be smelled when it is running hot. Your vehicle should be checked to see if the fans are working, and the thermostat is okay. A pressure test for...

Related articles

P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the P0052 code means This code is seen when the Engine Control Module (ECM) tries to control the...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...