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Transmission flush yay or nay?

Posted on 1/13/18 at 11:53 am
Posted by cassopher
Lake Charles
Member since Jan 2010
814 posts
Posted on 1/13/18 at 11:53 am
2012 expedition with right at 80k miles on it. Should we have the transmission flushed as part of regular maintenance or is it necessary?
Posted by biglego
San Francisco
Member since Nov 2007
85576 posts
Posted on 1/13/18 at 11:54 am to
Nay
Posted by PearlJam
NotBeardEaves
Member since Aug 2014
13908 posts
Posted on 1/13/18 at 11:55 am to
I'm always scared to mess with a transmission that is operating as it should.
Posted by Eli Goldfinger
Member since Sep 2016
32785 posts
Posted on 1/13/18 at 11:55 am to
>100 miles = nay
Posted by jdeval1
Member since Dec 2009
7525 posts
Posted on 1/13/18 at 11:55 am to
I don't do anything but routine maintenance until 100k.
Posted by jimbeam
University of LSU
Member since Oct 2011
75703 posts
Posted on 1/13/18 at 11:55 am to
Noooo
Posted by Enadious
formerly B5Lurker City of Central
Member since Aug 2004
18721 posts
Posted on 1/13/18 at 11:57 am to
Only if you want to buy a new transmission. You should have your transmission serviced, though. Go to a competent shop and have them drop the pan and change the filter. A flush doesn't change your filter. I'd use AGCO in Baton Rouge and will have mine changed there in a couple of months.
Posted by Darth_Vader
A galaxy far, far away
Member since Dec 2011
74665 posts
Posted on 1/13/18 at 11:58 am to
Nay, all a flush is going to do is stir up all the tiny flecks of metal and disc particles that have settled at the bottom and run it all through your tranny, contaminating and fricking up the whole thing.

Don’t do it.
This post was edited on 1/13/18 at 11:59 am
Posted by cajuncarguy
On the road...Again!
Member since Jun 2013
3135 posts
Posted on 1/13/18 at 11:58 am to
quote:

Only if you want to buy a new transmission. You should have your transmission serviced, though. Go to a competent shop and have them drop the pan and change the filter. A flush doesn't change your filter. I'd use AGCO in Baton Rouge and will have mine changed there in a couple of months.


This is good advice.
Posted by Buster180
Member since Jun 2017
1455 posts
Posted on 1/13/18 at 12:07 pm to
JMO but I would trust Ford over some baws from the OT lounge.

This post was edited on 1/13/18 at 12:10 pm
Posted by Enadious
formerly B5Lurker City of Central
Member since Aug 2004
18721 posts
Posted on 1/13/18 at 12:16 pm to
quote:

JMO but I would trust Ford over some baws from the OT lounge.


Ford is in the business to sell vehicles. That's why they recommend 150,000. It only helps the transmission if you change the fluid and filter sooner and could prevent major damage.
Posted by Lawyered
The Sip
Member since Oct 2016
38804 posts
Posted on 1/13/18 at 12:24 pm to
Got an Xterra with 236,000 miles on it and have nEver had a bit of trouble except for a battery change . Only do routine oil changes and air filters .
Never fooled with a transmission flush or any other thing the mechanics try to push
Posted by Sprung
In between the cusions
Member since Apr 2008
1942 posts
Posted on 1/13/18 at 12:46 pm to
Dealers make a killing on service. Selling the car is great but the real money comes from service at the dealership.
Posted by kengel2
Team Gun
Member since Mar 2004
33869 posts
Posted on 1/13/18 at 12:50 pm to
quote:

JMO but I would trust Ford over some baws from the OT lounge.


Flush is different from a fluid change.

Id do a fluid change, but never a flush.
Posted by keakar
Member since Jan 2017
30152 posts
Posted on 1/13/18 at 12:58 pm to
quote:

Nay, all a flush is going to do is stir up all the tiny flecks of metal and disc particles that have settled at the bottom and run it all through your tranny, contaminating and fricking up the whole thing.


OMG i have never heard such stupid shite in all my life

ITS NOT LIKE FLUSHING A DAMN TOILET YOU MORON !!!

a tranny flush simply lets the tranny pump out the old worn out fluid as its replaced with fresh new fluid.

everyone should do a tranny flush fluid replacement every 100k miles. this is not a drain and refill the pan but you actually replace "all" the fluid in the tranny.

a few idiots still go around insisting it makes trannys fail but these are old wives tales morons keep repeating because they read it on the internet somewhere because back in 1970 the way trannys were made this sometimes did happen because the way those older trannys were made the gritty dust from the friction disks helped worn out trannys still work but when the grit was removed from them it made the tranny start slipping. this happened because the tranny already needed the friction plates replaced, but the old dirty fluid kept it working.

tranny fluid (even the ones they claim last forever, has a set lifespan, and after 100k miles it needs replacing or your tranny can lack proper lubrication and have premature failure.
Posted by LEASTBAY
Member since Aug 2007
16683 posts
Posted on 1/13/18 at 12:59 pm to
not supposed to flush that Transmission, theres a valve in there that doesnt open until a certain temp. Just the fluid change and maybe filter I think its like 100+K though. I wouldnt touch it.
Posted by SpecialHazard
SOCAL
Member since Jan 2018
1572 posts
Posted on 1/13/18 at 1:02 pm to
Not only no, but Hell NO!
Posted by Cocotheape
Member since Aug 2015
4242 posts
Posted on 1/13/18 at 1:04 pm to
If you aren't having transmission issues I wouldn't.

Notice any issues with shifting then trying the transmission fluid change (assuming no leaks) is a fairly cheap thing to try for a fix
Posted by Double Oh
Louisiana
Member since Sep 2008
24689 posts
Posted on 1/13/18 at 1:07 pm to
at 100K miles yes you need to do it
Posted by kengel2
Team Gun
Member since Mar 2004
33869 posts
Posted on 1/13/18 at 1:07 pm to
quote:


a tranny flush simply lets the tranny pump out the old worn out fluid as its replaced with fresh new fluid.


Nope, they run a chemical to flush the transmission and then put new fluid in it.

Skip the flush and just change the fluid.
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