Skip the auto shop - Our mechanics make house calls

Q: Transmission fluid filter change - 1990 Ford LTD Crown Victoria

asked by on

I stopped at the local Quick Lube to get my transmission fluid and filter changed. My car hasn’t been shifting properly the rest of the day. The problem is worse when it’s cold, but better after it warms up. It did this the next day, too. I check my oil and it seems fine. Do you know what happened? How can I fix this? Do you think the Quick Lube caused this?

A: Based on your model year, this vehicle may ...

Based on your model year, this vehicle may have lots of miles on it. (I am going to assume they changed the transmission filter as they should have. Call to verify.) Changing transmission fluid can often have a negative effect, despite logic that would suggest otherwise. Changing the fluid may stir up sediment that sticks in the valve body of the transmission, changing shift behavior. The new fluid has a slightly "refreshing" effect on seals and cluches, also slightly changing shift behavior. It doesn’t hurt to take it back to the shop where the work was done to verify their work. But - be prepared to hear some of the above rationale for the behavior you now see, based on it being a higher mileage vehicle. If you would like, a certified technician from YourMechanic can come to your home or office and inspect your vehicles transmission, fluids, and filter.

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: No acceleration or RPM increase while pressing gas pedal

It sounds like you may have an issue with your throttle position sensor. This sensor sends a reference voltage to your power-train control module, which uses that to determine ignition timing and fuel trims. If the power-train control module is...

Q: Car wouldn't move when put into second gear - 2007 Mercedes-Benz B200

Hello. It sounds like you may have a problem with the clutch of the transmission. If the clutch won’t engage, the car will stall or not move at all. It will be necessary to replace the clutch, the slave cylinder...

Q: Car vibration, engine shuddering at idle

Hello. It sounds like the torque convertor is malfunctioning causing the car to vibrate and shudder. It is also possible that there is a problem with the drive shaft being out of balance. One more possibility is that the transmission...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
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...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...