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  #1  
Old May 7th, 2009, 08:31 AM
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Transmission question !!

Hi guys .

Do I need to change the torque converter oil every time I change the tranny oil ????

Thanks .
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Old May 7th, 2009, 09:22 AM
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Yes as it contains more fluid than what's in the pan. I always change the transfilter, clean the magnet and drain the convertor as that's the correct way of doing it. If obtaining the fluid is an issue, clean the magnet, replace the transmission filter and refill.
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Old May 7th, 2009, 09:37 AM
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The older Town Cars had a drain plug on the torque converter to make the job easy. It may not be a feature on yours. Here is a tech article on how to replace more of the trans fluid: http://www.lincolnsonline.com/tech/00075.html

Mercon V is usually recommended.
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Old May 7th, 2009, 10:26 AM
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Thank you so much .
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Old May 7th, 2009, 11:51 AM
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Quote:
Originally Posted by mercury_1988 View Post
Hi guys .

Do I need to change the torque converter oil every time I change the tranny oil ????

Thanks .
It would be great to do it everytime, but.....I doubt many people do it.

It couldn't hurt......
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Old May 7th, 2009, 01:05 PM
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Originally Posted by Fordace View Post
It would be great to do it everytime, but.....I doubt many people do it.

It couldn't hurt......
You are probably right, since it is either a potch or expensive, but only changing 4 quarts (some have said 5 to 6 quarts, but those who have measured the volume say about 4, so that is what I will use) every 30,000 miles is a poor practice. Since the transmission on a '01 TC holds 14 quarts, replacing 4 quarts every 30,000 miles will result in progressive deterioration of the oil due to heat and contamination.

An alternative to pumping the trans oil out for total replacement is frequent replacement. Dereck uses 15,000 mile intervals. Another approach is to change 4 quarts every 10,000 miles and the filter every 30,000 miles. A drain plug in the trans pan would greatly facilitate this approach.

My Ford dealer has changed the filter and "flushed" out the old oil on my cars for years. I think the trans performs much better and longer when maintained this way.
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Old May 7th, 2009, 01:20 PM
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Flush the system (with that flushing machine that some shops have) and also do the filter.
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Old August 15th, 2009, 02:16 PM
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A week ago My brother changed the transmission oil , filter ,and drained the torque converter . He told me that he used the motorcraft mercon V ATF but when he gave the bill , I found out that he bought the mercon ATF . I only put 400 miles on the new oil . Should I flush the trans with the TC and put mercon V atf ????
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  #9  
Old August 15th, 2009, 03:01 PM
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Quote:
Originally Posted by mercury_1988 View Post
A week ago My brother changed the transmission oil , filter ,and drained the torque converter . He told me that he used the motorcraft mercon V ATF but when he gave the bill , I found out that he bought the mercon ATF . I only put 400 miles on the new oil . Should I flush the trans with the TC and put mercon V atf ????
Hi mercury,
The 1998 and 2001 Town Cars require Mercon V. Here is what the 2001 Lincoln Town Car Owner's Manual says:
"Ensure the correct automatic transmission fluid is used. MERCON and MERCON V are not interchangeable. DO NOT MIX MERCON and
MERCON V. Refer to the scheduled maintenance guide to determine
the correct service interval."

I would think the 1999 spec's are the same as the 1998 and 2001.

Sounds like you need an immediate flush to remove the atf mixture in your trans. You may want to advise the technician that you have a mixture of Mercon and Mercon V so that he can ensure a thorough change.

Sorry!
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Old August 15th, 2009, 03:01 PM
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Quote:
Originally Posted by mercury_1988 View Post
A week ago My brother changed the transmission oil , filter ,and drained the torque converter . He told me that he used the motorcraft mercon V ATF but when he gave the bill , I found out that he bought the mercon ATF . I only put 400 miles on the new oil . Should I flush the trans with the TC and put mercon V atf ????
I can only offer this information from the 99 FLM service manual.

My interpretation would be to get the correct fluid in that transmission.

Good Luck.
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File Type: gif 99 Transmission Fluid Specs.gif (14.6 KB, 36 views)
  #11  
Old August 15th, 2009, 05:16 PM
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Quote:
Originally Posted by ABE View Post
Hi mercury,
The 1998 and 2001 Town Cars require Mercon V. Here is what the 2001 Lincoln Town Car Owner's Manual says:
"Ensure the correct automatic transmission fluid is used. MERCON and MERCON V are not interchangeable. DO NOT MIX MERCON and
MERCON V. Refer to the scheduled maintenance guide to determine
the correct service interval."

I would think the 1999 spec's are the same as the 1998 and 2001.

Sounds like you need an immediate flush to remove the atf mixture in your trans. You may want to advise the technician that you have a mixture of Mercon and Mercon V so that he can ensure a thorough change.

Sorry!
Thank you very much my friend . I know that all 4R70W transmissions require Mercon V ATF . I'll flush the transmission, clean the new filter and drain the TC first thing in the morning .

no0c thank you so much for the info .
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  #12  
Old April 25th, 2010, 02:42 PM
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Quote:
Originally Posted by ABE View Post
The older Town Cars had a drain plug on the torque converter to make the job easy. It may not be a feature on yours. Here is a tech article on how to replace more of the trans fluid: http://www.lincolnsonline.com/tech/00075.html

Mercon V is usually recommended.
In another thread, Dereck says that there is a torque converter drain plug on a '01 TC, so the earlier models must have it too.
 

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