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Thread: How-To flush ATX fluid and change filter Reply to Thread
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Topic Review (Newest First)
Today 03:30 AM
elsolo There is no sucking of fluid. The cooler outfeed will discharge under pressure, but there will be no sucking up of fresh fluid
04-29-2015 09:15 PM
In a Focus group
Quote:
Originally Posted by c00lkatz View Post
Another way to do it is to remove the pan, drain the fluid, clean the pan and install the new filter, then top it off with some fresh fluid, like normal. But instead, take the cooler inlet hose, stick it into an empty bucket, take the cooler outlet hose, stick it into a bucket filled with fresh fluid, then let the car run. This will allow the pump to drain all the old fluid while sucking in new fluid at the same time. Then you just shut it off when fresh fluid starts coming out of the drain hose. That way you don't accidentally run it dry, and you still flush the whole system at once. Be sure to check the fluid level afterward. If it's too low, top it off, too high use a MityVac/Vacuum Pump and siphon the excess out. That's a tool anyone working on their own car should have anyway. Very handy little device.

Haven't had to do it on my Focus yet, but I've done it on other cars with great success.
That's the way I've always heard how to do it. Pumping it out first confuses me.
12-28-2014 11:42 AM
FocusKnot
Quote:
Originally Posted by jiushiwo View Post
@FocusKnot - What model of remote spin on filter did you use? Where and how did you mount it?
@jiushiwo - I posted a how-to for the remote filter installation here:

http://www.focusfanatics.com/forum/general-technical-chat/515890-how-install-external-spin-transmission-filter.html
12-16-2014 11:36 PM
Dennyj1992 Just now reading this write up for the first time.

Excellent work Focusrun! Thank you for all of the awesome info (and pictures) you included.

It goes to show that even the new guy around these parts can get some mechanical work done with a little try hard and effort.
12-16-2014 09:46 PM
jiushiwo Good to hear that splicing wasn't such a bad idea after all.

Having just learnt that proper maintenance means the first car that someone owns should also be the last, I may very well complete the job with a whole new transmission cooling line.

Thanks again for the input!
12-16-2014 09:11 PM
amc49 X2 to that............
12-16-2014 08:10 AM
FocusKnot
Quote:
Originally Posted by jiushiwo View Post
...parts tech at Crappy Tire said that splicing would be fine given the pressure is relatively low.
Yes, the pressure in the return line is only a few PSI. I measured only 2 PSI at idle in neutral, and then 3 PSI at about 3500 RPM.

Quote:
Originally Posted by jiushiwo View Post
@FocusKnot - What model of remote spin on filter did you use? Where and how did you mount it?
I made it from a Derale 13049 Remote Filter Mount Kit and put it in front of the driver's side tire. If people are really interested in this, I will create a how-to.

Quote:
Originally Posted by jiushiwo View Post
...I gave in to the most inelegant solution of splicing the hose with a brass barb splice and four hose clamps(which I will replace shortly with the spring style clamps). The parts tech at Crappy Tire said that splicing would be fine given the pressure is relatively low.
Many transmission cooler kits include such hardware. I acknowledge that adding connections add a risk of leakage
There is a more elegant way to deal with the return hose if you decide to do so.

Cut off the existing rubber hose where it is attached to the transmission return line and then cut off the clamp. Now you will be able to replace the entire rubber hose between the cooler and transmission. I use Gates 3/8" Transmission Oil Cooler Hose (Part # 27061) from O'Reilly Auto. NAPA and other stores carry a similar transmission cooler hose. Use a worm drive clamp on each end and you are back in business. Correctly sized spring clamps would also work.
12-16-2014 05:58 AM
amc49 '...a brass barb splice and four hose clamps...'

Will run forever installed competently, got two cars with years on them and the same. They don't leak at all. Not as clean looking as spiffy OEM fittings but all that counts is dead 100% reliability to me. ATX runs maybe 30 psi, I got retrofit a/c highside on one car with barb and double worm clamps running at 300 psi on rubber hose filled with R134A.
12-15-2014 10:55 PM
sailor Sounds like an elegant & adequate solution for the frozen fittings problem to me.

(you really don't need to replace all the hard to obtain pieces just to keep it factory original)

Good work.
12-15-2014 10:16 PM
jiushiwo Thank you Marde, Focusknot and ElSolo.

I gave another shot at unscrewing the line from the transmission, while I had no problem loosening the initial thread using a 17mm flare wrench, the fitting wouldn't turn further as the bind between the hose and the fitting would cause the solid aluminium line to turn as well which results force down the hose.

At just a few degrees below freezing with high humidity means murder for working with your hands, so I gave in to the most inelegant solution of splicing the hose with a brass barb splice and four hose clamps(which I will replace shortly with the spring style clamps). The parts tech at Crappy Tire said that splicing would be fine given the pressure is relatively low. Considering I chewed off his ear about my failed attempts at getting the hose off, his response was possibly an attempt to get rid of me. For $6, I would be freeing myself from excessively colourful language.
Many transmission cooler kits include such hardware. I acknowledge that adding connections add a risk of leakage, however one easier to deal with than any additional stress on the transmission cooler return outlet. Nevertheless, my admission into the Focus Hall of Shame may be in order.

I just came back from a 15km ride to see how the vehicle ran. The engine reached normal operating temperatures. The shifting seemed smoother, but it could be me just trying to feel that there is an improvement. The fluid level will be checked periodically.

@FocusKnot - What model of remote spin on filter did you use? Where and how did you mount it?

Thanks again!
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