transmission filter

Asked by GuruXXCL4 Oct 17, 2018 at 07:41 PM about the 2000 Mercury Grand Marquis LS

Question type: Maintenance & Repair

should filter be changed along with transmission fluid on a 2000 grand
marquis Ls? Mechanic tells me that it does not. Looking for a second opinion.
Thank you

4 Answers

42,710

If you go through he trouble of dropping the pan to change the oil, it would be foolish to not change the filter too. It's only a $10 or $15 part. But if you want to change only the transmission fluid, hook up a suction tube rig that draws the oil up the refill tube. You will get the same five quarts doing that, and it's a lot quicker. You don't have to jack it up of remove/replace twenty pan bolts and gasket.

2 people found this helpful.
157,115

Some say yes and some say it is not necessary. Many shops us a fluid replacement machine that hooks up to the transmission cooler lines which eliminates the need for dropping the transmission pan. My guess is that this Mercury has over 100,000 miles on it and the fluid hasn't been replaced. I would take it to someone that will remove the transmission pan and change the filter.

6 people found this helpful.
150

Any mechanic who says not to change the filter is not worthy of your business. As the filter loads up, fluid flow through the transmission is reduced. Change it at 50k miles.

4 people found this helpful.
150

I would rather have a pan drop, filter change, pan/ magnet cleaned, six quarts of new fluid than screwing with the cooler lines with12 quarts of new fluid pumping through a dirty restrictive filter and a pan filled with junk.

5 people found this helpful.

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