05 auto <acronym title="transmission">trans</acronym> oil change - Ford Mustang Forum
 
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post #1 of 9 (permalink) Old 04-25-2018 Thread Starter
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05 auto trans oil change

I have about 4 months with my s197 and prob put around +3k miles on it(123k total).I haven’t done a trans oil change. I am scared if I do I might end up messing it up and causing it to start slipping. Is there any symptoms or signs that a trans is on its way out due to not changing its trans oil ? I don’t know the color of it or level.


1993 White Edition 5.0 LX Vert AOD
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post #2 of 9 (permalink) Old 04-25-2018
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1st, don't be scared, it's really no different than changing engine oil !


With 100k+, drop the pan and change the filter (most just pop into place), reinstall the pan (gasket is reusable) and fill with 4 quarts or so until it shows full on the stick (I'm assuming you have an ATF fluid level stick)....then DC 1 cooler line and run the hose into a 5 gallon bucket, have a friend fire up the engine and when you have dumped about 3-4 qts, shut off the engine & refill.....the owners manual will have the capacities, but when you have pushed that quantity out....your change is done!


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post #3 of 9 (permalink) Old 04-26-2018 Thread Starter
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Thanks for your response, I’ve done a lot of trans oil changes on “new edge” stangs with no prob. But with these s197s there’s no dipstick so refilling is the hard part. Where can I find the fitting that goes inside the plug ? I have already purchased the filter, oils, and hand pump .

1993 White Edition 5.0 LX Vert AOD
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post #4 of 9 (permalink) Old 04-29-2018 Thread Starter
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Anybody have a link to the special fitting that goes on the transmission pan where the plug was removed ??? I believe a t-30 torx bit socket is used for that specific plug.

1993 White Edition 5.0 LX Vert AOD
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post #5 of 9 (permalink) Old 04-30-2018 Thread Starter
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After an hour of research i found out I need the OTC 6604 transmission fluid adapter that goes for $20 on Walmart or Amazon. There is a cheaper option , I can go to AutoZone and buy the brass pipe hose connector for $3 !&#x1f603;....... But I am lost I'm not sure if the size of the threaded bolt end ,needs to be 1/8, 1/4, or 1/16......... does anyone know the size of the threaded entry ??? Hope it makes sense

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post #6 of 9 (permalink) Old 05-08-2018
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Last edited by 08'MustangDude; 06-05-2018 at 06:34 AM.
post #7 of 9 (permalink) Old 05-08-2018
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Sometimes healthy debate is good so I will say another option is to have a competent repair shop or Ford Service flush it vs replacing the screen and refill. It doesn't require dropping the <acronym title="transmission">trans</acronym> pan or replacing the filter. The owners manual is silent on flushing so it is not required maintenance but a personal option.

There are owners who will advise against flushing the transmission. I worked where the fleet of CVIs were flushed every 30,000 miles and there were no ill affects. I've had my GT flushed once without any problems.

Whatever type of service you opt for, or wish to do it yourself or have a shop service it, do you know for a fact the previous owner did not already service the transmission.

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post #8 of 9 (permalink) Old 05-18-2018
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Last edited by 08'MustangDude; 06-05-2018 at 06:41 AM.
post #9 of 9 (permalink) Old 05-18-2018
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Your point applies if the machine is reverse flush. However, most shops use machines that are directional flow and do not reverse the normal fluid flow.

It would be wise to inquire what equipment and procedure the shop uses because there are different flush processes such as the cooler lines and also the pump inlet (pan off). Using a solvent to remove varnish is also an option with the flush, but unless the transmission has a lot of hard miles on it I wouldn't recommend it.

The one benefit of a flush is it allows the technician to see what has been flushed out vs trying to get a snap shot by looking at just a filter.

Is this overkill; maybe, maybe not. In no situation flush the transmission if it is showing signs of failure because flushing is not a repair procedure and will accelerate its death. It is strictly an elective maintenance procedure to keep the system clean and fresh.

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