Transmission fluid filter change

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?
Experienced mechanics share their insights in answering this question :
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.

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Valvoline Dexron VI Automatic Transmission Fluid 1 Gallon.
1990 Ford Ltd Crown Victoria Sound Effects Library

The car has a 4-speed AOC automatic transmission.

AOD Street Terminator/Cruiser transmissions models should use Dexron III /Mercon, or Mercon V. Compatible synthetic variants can be used.
How much transmission fluid do I need for my car? A typical fluid change can require anywhere from 2.5 to 5.5 litres (3 to 6 US quarts) of automatic transmission fluid, depending on the make and model of the vehicle. Some may require far more.
FRAM – Mercon V Automatic Transmission Fluid: 1 Quart (Part No. F450) FRAM Mercon® V ATF is for use in Ford vehicle transmissions and transaxles.
Etymology. The LTD designation has been speculated by some to be an abbreviation of “Luxury Trim Decor” and by others as a “Limited” trim designation for the Galaxie.
Powertrain. For its 1980 introduction, Ford produced the LTD Crown Victoria with two engines (both of them V8s). In place of six-cylinder engines as standard equipment, a 130hp 4.9L V8 (the previous 302, rounded up to 5.0L by Ford) was standard, with a 140hp 5.8L V8 (351) as an option.
Comparison with standard Crown Victoria. Both cars use the same 4.6 L 2V SOHC V8 (both Flex Fuel starting in 2008), Ford modular engine, and Ford four-speed automatic transmission. However, a few notable differences exist between the CVPI and a standard Crown Victoria or Grand Marquis.
These cars are the epitome of reliability as long as you take care of them. The car is heavy, it eats gasoline, sure. But if you need a truck and don`t want a truck, get a crown vic. I chase storms with this and drove it well over the speed limit on ice and rain and have not once lost traction or hydroplaned.
Dexron III is a General Motors trademark for qualified automatic transmission fluids. Mercon covers all automatic transmissions for Ford model year 1988 and after. LUBRIPLATE Dexron III/Mercon is designated as make-up and/or refill fluids to meet respective car warranties.
Valvoline Dexron VI/Mercon LV ATF is the full-synthetic automatic transmission fluid that has been uniquely engineered to meet and exceed the requirements of the General Motors Dexron VI specification and is officially licensed and approved by GM.
In general, transmissions take about 9 to 13 quarts to fill completely. The amount of transmission you add will vary, depending on whether you are draining or replacing it all or you are just topping it up. Again, you should avoid adding too much. It is advisable to put in little amounts at a time.
Automatic transmission fluid (ATF) is a type of hydraulic fluid used in vehicles with automatic transmissions. It is typically coloured red or green to distinguish it from motor oil and other fluids in the vehicle.
Automatic: Every 60,000 to 100,000 miles

If you drive manual, most manufacturers will recommend changing your transmission fluid every 30,000 to 60,000 miles. If you have automatic, you can typically boost that range up to 60,000 to 100,000 miles. There`s no harm in changing your fluid early.

Transmission fluid should be reddish in color. Here`s what other shades indicate: Translucent red: Your transmission fluid is fresh and new. No action is required!
6.2L. Approximate dry fill capacity.
Engine oil and transmission fluid basically differ from each other. Engine oil is a lubricant, while transmission fluid is a hydraulic fluid. Although they both may appear similar, they serve very different purposes. Engine oil helps enhance the engine`s performance and fuel efficiency.
In vehicles without a dipstick, you have to lift the car to reach the level plug. In a garage or service center, lift the car with a hydraulic lifter with due safety SOPs. Find the oil level plug that is usually in the center of the transmission. Consult the vehicle manual for the exact location.
Transmission fluid level is typically checked with the engine running at normal operating temperature. You may not get an accurate reading if the transmission fluid is cold. The vehicle should be in a specific gear (usually PARK or NEUTRAL) and on a stable, level surface.
If you`re going to be checking the transmission fluid level at home, it`s a good idea to warm up the car before you do so. If the car is checked while the engine is cold, it might give an inaccurate reading when you use the dipstick. After driving for about 10 minutes, park on an even surface and leave it running.
Checking initially when cold is easier as you are not hovering over a hot engine holding a hot dipstick. Basically, on a flat level surface, start the vehicle`s engine and immediately run through each gear, pausing just momentarily. Finish with the car in “Park” and leave it in “Park”.
Transmission fluid helps make the act of shifting gears less strenuous on your vehicle by lubricating the bearings and moving metal parts within the transmission. It also helps with other functions, like: Torque convertor operation. Valve body operation.
Overall, the LTD had a luxurious presence, and it sold very well. The LTD`s standard engine was the latest generation of 302 Windsor small-block, generating 220 hp, with the 351 Cleveland small block, 390-cid V-8, and 429 big-block engines also available.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

New cars don’t have transmission fluid dipsticks Transmission fluid changing
ANSWER : That’s a very good question. The reason they have gone with no dipsticks is because they don’t want people messing with transmissions other there at the dealership. Some cars went through that a couple of decades ago. They make it a very involved, convoluted process all through, in order to change the fluid on these modern cars. They have special adapters you have to put. Some of them have to have scan computers in order to read the data and what’s in there, and then be able to change it. A lot of these companies claim that this new fluid is the "lifetime" fluid.

Most new use synthetic fluid can last a long time but any fluid is going to get dirty and wear out over time. I would change it at least every 80,000 – 100,000 miles but if you’ve got one that is really hard to change, you are better off hiring a mechanic to do it.

On some of the cars, it would be too hard for the do-it-yourself because of all that equipment you need. The professional mechanics already have that. Just call any good mechanic, like one from YourMechanic, and they will be able to perform a transmission fluid service for you.

Do I need to get the transfer case fluid and transmission fluid changed?
ANSWER : Hi, thanks for writing in. I looked at your maintenance schedule for your vehicle and found that for up to 150,000 miles, it only says to inspect the fluid level and not change it. The fluids are special fluids and if you did need any work done (i.e. if there is a leak present or other mechanical problem) then make sure the correct Ford certified fluid is used.

When it is time for you to have your transmission fluid serviced, consider having a certified automotive technician from YourMechanic come to your home or office to perform the service for you.

Hope this helps and best of luck!

Does this transmission have a transmission filter that can or needs to be change at certain miles?
ANSWER : Most vehicles have an internal transmission filter that can be changed by removing the transmission pan. Some diesel trucks will have an external filter that can be changed just like an oil filter. The transmission filter is usually recommended to be replaced either when the transmission fluid is replaced or around 100,000 miles depending on the manufacturer’s recommendation.

As for which fluid to use, I would recommend looking in you owners manual. Your owners manual will list all fluid specifications that are required for your vehicle including capacity and type. I would always recommend using what the manufacturer recommends for the vehicle.

If you’d like to have your transmission fluid and filter serviced, consider YourMechanic, as one of our mobile technicians can come to your home or office to do so.

is it safe to change Transmission Fluid. Hasn’t been changed in a long time. Currently the Transmission is working fine; no slip
ANSWER : I agree with the other mechanic. If the fluid looks dirty then this means the transmission was not serviced for a long time and if you service it then the new fluid will wash out all the clutch material that is being held together by the old fluid. You would be taking a big chance that the transmission will start slipping within a week after you service it.

A 75-point safety inspection is a good idea after long-term storage, and a qualified technician from YourMechanic can perform this for you at your home or office.

There is automatic transmission fluid in a manual transmission. Is it okay to leave or do I need manual transmission fluid?
ANSWER : This would depend on what the manufacturer recommends. Many manual transmissions do take automatic transmission fluid. If your transmission has ATF in it, it is very likely that it is supposed to have that in there. If not, it is likely that the transmission would not function properly with the wrong fluid. Many manual transmissions will also take engine oil as a lubricant. The best way to know for sure is to check your owner’s manual or call your local General Motors dealership to inquire.

My car is leaking transmission fluid – I can’t diagnose the leak
ANSWER : Based on the NHTSA database covering consumer complaints, as well as government mandated recalls and factory service bulletins, for your specific year, make and model, I do not see evidence of widespread complaints about transmission fluid leaks. Such leaks are, in fact, common in transmissions made by any car company, particularly if the transmission is older than say 10 years. There is a manual shaft seal, oil pan gasket, output shaft seals, case seals, torque converter seal (inaccessible) and so forth all of which are potential leak points on your transmission.

If you want to identify and resolve these leaks, certainly a certified Mechanic from YourMechanic could come out and perform a transmission leak inspection and let you know where the leak points are and what it will cost to resolve them.

Transmission fluid filter change – 1990 Ford LTD Crown Victoria
ANSWER : 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.

Can I use alternative Transmission fluid to the quotes recommended fluid if i’m bringing my own parts?
ANSWER : I would recommend buying the correct fluid. The reason is because I want to make sure your car is taken care of and is running as long as possible. You wouldn’t want to put something foreign in your car that it may not accept unless you’re willing to accept risks. Different fluids have different chemicals in it. It may cost more right now, but you won’t have to spend money buying a new transmission or having one rebuilt.