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mgroeger

Should I change transmission fluid

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I have a 2010 Ford Transit Connect XLT that came with a flower shop we bought last December. It has an automatic transmission, 2.0 gasoline engine and 112,000 miles on the car.

 

The transmission fluid has never been changed. I called the dealer where it was purchased and he looked it up by VIN number and said I have the 150k miles transmission fluid in my model. I know a good deal about cars and personally I change my trans fluid every 60k miles, so I know it's a crap shoot to change this fluid at this mileage.

The fluid is still red, not gritty and smells fine. Any advice on changing this fluid? I would do it myself with Ford fluid by taking off the trans line and letting the transmission pump out old fluid and then add new fluid in. That way there is no pressure on the system... i.e. not doing a power flush.

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Posted (edited)

I change every fluid in any used vehicle I buy shortly after the purchase, assuming the vehicle has been cared for like most people care for their cars, which is to say, not at all

 

I waited to change the trans fluid in my new to me 2014 until it hit 25,000 miles and I'll be doing it every 25,000 from now on.  I would venture to guess that for RWD cars with a rear differential, 90% of them have never had the gear oil changed    -    Probably a safe guess

 

TC transmissions don't have a very good reputation for making it to 100K without a trans fluid flush, let along 150K.  If I had just bought an older one, getting that done would be my first priority, but I'm not sure I would use your proposed method  -  I think you would run the pump dry doing that and it may cause you problems.  When I changed mine to full synthetic, I used about 18 quarts, draining 4 and refilling 4 several times.  Was still cheaper than taking it to Ford for their flushing procedure

 

Don

Edited by Beta Don

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Thanks Don. The method I showed is simple and I've done it before with great success on another car. I've also used your method and it works well too. It will get about 80% to 90% changed over with the drain and fill version which is probably a good thing to leave a little behind to act almost as a friction modifier. The dealer wants $250 so I'll do this on my own. Do you know how many quarts the trans holds? Personally I will stick with the Ford brand that is in it, I've learned my lesson the hard way on that but that's a whole other conversation :)

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I was at the dealer today to schedule my third service (46Mm in) and asked when would they do the transmission fluid change. 

 

“It’s a lifetime fluid, changing it might make it worse.”

 

You dummy.

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Me Dummy or Dealership Dummy?

 

That was a pretty dumb answer from the dealer.

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Simple deduction would indicate the dealer being a dummy.

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I have used the cooler line method lots of times on lots of cars, if  you run 3 qts out at a time the pump fill not run dry.  The 2014 TC has a drain plug and the cooler line is very hard to access.  The drain fill , drain fill method is better suited to the Gen 2.  The total capacity is under 9 qts,A 12 qt case will do the job.

Lifetime fluid could mean almost anything.  Ford is only worried about the TC making 60000mi or 100000k, after that all bets are off.

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mrtn, I need the name of the dealership.  I'm retired but it would be nice to have a job where I got paid for not thinking :-)

 

I would get the fluid changed.  Years ago had a Safari van and the transmission started shifting less than perfectly.  Took it to the local Express Oil change and the did the two bucket method which was really cool to watch.  Got rid of the van with 200,000 miles on it and the transmission was still great.  Had an early Ford Taurus that had the transmission rebuilt by Ford at 10,000 miles, it self destructed at 50,000 miles on vacation was taken to the cleaners by AAMCO - should have had local dealer do it.  The original problem was hard downsifts when almost stopped.  Local AAMCO fixed that problem when wee took it in to have it checked after the vacation rebuild - rear motor/transmission mount.  It is so refreshing when you run into someone who knows how diagnose and fix things.

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Sure, it's half way around the world tho: http://infoauto.ee/

 

It was the same guy who told me they performed shift actuator fork diagnostics and it shifts fine, the last time I was there. So I told him there are no shift actuator forks in 6F35 (facepalm).

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Any good links showing actual procedure?

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Sorry folks, found the procedure at 

 

MAINTAINANCE > 5W 30 Synthetic Oil Use > (scroll to March 2, 2017) GBL Post "Here's the post I did on changing the Transmission fluid it could help" > click on "Transmission Oil Change"
 

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tworock  I have done the fluid change twice. My interval is 25000 mi , I tow a trailer a fair amount, its an easy job.  The Trans works the fluid hard.

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