tranny flush?

phillyFX4 · #1 08-08-2003, 02:51 PM

Knowing how messy changing my trans fluid is gonna be, would I be better served just to have the dealership do thier "Wynns Transmission Flush"? Anyone have a BAD experience with this procedure?

thanks.....

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peterbilt · #2 08-14-2003, 06:42 PM

I'll let you know after tomorrow, I'm having my tranny flushed at the Ford dealer. $144. It's a lot, but since this is the first flush I want to make sure they use Merc V and maintain the warranty. I use to flush the tranny when I had a 4Runner with Mobil synthetic ATF. Wasn't too bad to do. I'll probably do the truck myself the next time.

Later
Pete

F Dragon · #3 08-15-2003, 01:05 AM

Tranny fluses are great; rather than just draining the pan, they get alot from the cooler and converter (but not all). If the fluid is extremely burnt, consider having them pump it, fill with cheap stuff, and pump again. BTW, 144 IS alot for a change! We charged half that at Level 10!

hmustang · #4 08-17-2003, 05:05 PM

144 sounds a little high when I went to get the oil changed at the dealership a week ago they had 99 bucks for the flush at the dealership I went to on there board with all the charges for everything they do.

02XLT · #5 08-17-2003, 09:32 PM

I paid $60 at a reputable local transmission shop to have them drain my fluid (minus the TC) and add the factory spec fluid. I watched them do the work and have everything written on the receipt incase I ever encounter any problems. I have no problem trusting transmission shops if they have a good reputation, stand behind their work, etc..

-Brian

JustinH · #6 08-17-2003, 10:24 PM

if you are just dropping the pan, you aren't getting hardly any of the fluid out.

Ditto for if you aren't draining the torque converter.

Pull the tranny return hardline from the radiator fitting, and hook a rubber hose up to it, start the car until you get air bubbles and not fluid.

Shut the car off right away, and drop the pan.

You will find that most of the fluid is gone from the tranny, and you have gotten the old stuff out.

Clean the pan and magnet, and check the torque on the valvebody while you are there.

Replace the filter with one from ford, and put it back together and torque the pan bolts to spec.

Now is a good time to put a deep sump pan on there if you haven't already.

Now is a good time for a huge tranny cooler also.

Hook up all the hardlines, and fill it up with 6 quarts of mercon V, start the car, shift all the gears.

Shut off the car, and fill it up to the line.

Done deal, about an hour job for anybody.

02XLT · #7 08-17-2003, 10:28 PM

Your getting the majority of it out by dropping the pan. Your just not getting the fluid that's in the TC since there is no drain plug on it. You can always flush it like you say, but then your taking the chance of pushing any contaminates through the transmissions moving parts. To each his own. I know of plenty of people that have done it both ways with GREAT results. So go with what you feel comfortable with. I never tow anything with my truck, so I am okay with leaving a little of the old fluid in and then draining it a little sooner next time.

-Brian

greencrew · #8 08-18-2003, 12:08 AM

It all depends, I just went throug this. My TC had a drain plug and the dealer got 12 or 13 quarts out of 15 total. That's good. Even if you do a flush the new clean fluid will be mixed in the pan with the old and it's not a complete flush.

If you go to any place that is not a Ford dealer make sure you ask them what fluid they are putting in, and look yourself to see if it is the right fluid. My trans takes Mercon V and I did not find one place in town that carried it, and one guy said he heard of Mercon, but not Mercon V.

Better method is to have the pan dropped and filter checked, then refill and flush.

Best method is to drop the pan check filter and fill. Treat with 6 oz of Auto-RX to remove varnish build-up for 2000 miles, then Flush with T-TEC or Wynns.