Skip the auto shop - Our mechanics make house calls

Q: Front seal leak in minivan's transmission - 1997 Ford Aerostar

asked by on

There is a bad leak in the front seal of my minivan’s transmission. The mechanic removed the transaxle and replaced the seal. Plus, he changed the filter and fluid. Soon after this, the overdrive stopped working. It shifts into overdrive, but when I step on the accelerator even slightly, it will shift right back out. At the time, I could not afford to get it repaired, so I put it in Drive and for three weeks drove it that way. Then yesterday, while driving at around 60 mph, my car shifted into 2nd gear, all on its own and then back into third gear, again all on its own. Then ½ mile later it started shifting between gears randomly and independently: 3rd to 2nd and back, repeatedly. I was being jerked around totally, like someone was stepping on the brakes. At present, I don’t have a job and I am on foot. Can you suggest anything that I can do to possibly fix this myself - or a work-around until better financial times arrive?

A: Hello. It sounds like your transmission eit...

Hello. It sounds like your transmission either did not get completely full of fluid after the service or it is leaking fluid again. To check the transmission fluid, start the car and leave it in park.

Next pull out the dipstick that goes to the transmission and wipe it clean on cloth or paper towel. Fully insert the dipstick into the tube once again and then pull it out. It should be within the level marks indicated on the dipstick. If it is low, add fluid in half pint increments until it indicates that it is full.

Make sure you wipe the dipstick before every time you take a reading. If the trans begins to work properly then you know it is a transmission fluid level problem. If it is still not functioning properly, it could be an internal problem with the transmission or a problem with a sensor in the transmission. For more assistance, consider YourMechanic, as a certified technician will be able to come to your home or office to help diagnose the leak and any issues with your transmission.

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: My Expedition vibrates a lot when stopped at a slope

Hello and thank you for your question. This symptom is not related to the engine but rather the transmission. If you drive the vehicle around and the engine runs just fine, then either the engine oil is low, causing the...

Q: Leakage of the automatic transmission fluid.

As you describe it, it sounds like you may have a leak coming from your transmission; however, it's difficult to diagnose without more information or actually seeing the vehicle. I would recommend having an expert from YourMechanic come to your...

Q: Car starts but won't run.

If your engine starts but won't stay running (idling) the problem is most likely a faulty idle air control (IAC) motor. The IAC opens and closes to maintain engine idle, if this component goes out, the engine will keep stalling. A...

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...
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...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...