2004 Mountaineer No 3,4,5 or Reverse?

[MBllnr]

First off let me start by saying GREAT site and awesome write ups. I have read a lot of the write ups but still dont know where to start.
My 04 Mountaineer was shifting hard for a while I had the trans flushed, that helped. It helped for a bit. The hard shifting came back and got worse. Now the trans will not shift in D if I put it in 1 then shift to 2 it works. I have no 3,4,5, and just today when I tried moving it closer to the shop R went out. When I do put it in 1 it "clunks" hard in but will work.
I have a P0745 code and a P0733 dtc. I dont know where to start yet, it has been raining so I haven't had a chance to do much with it. I am thinking check the band adjustment first, as it is a free fix.
I know this is a beaten topic but a general consensus on a starting point will be great.
Thanks Guys
Mike

 

[PopRichie77]

Look at these.
http://engine-codes.com/p0745_ford.html
http://engine-codes.com/p0733_ford.html
as for a starting point drop the pan

 

[PopRichie77]

Depending on what you find in the pan. Replacing the solenoid block may fix the problem. Also check the internal wiring for bare spots or bad connections.

 

[MBllnr]

Thanks for the responses I appreciate your time. I will be opening it up here soon and let you guys know what I see. I am just concerned with the reverse not engaging, seems the R doesn't go out too often with just the solenoid.

 

[imp]

Look at these.
http://engine-codes.com/p0745_ford.html
http://engine-codes.com/p0733_ford.html
as for a starting point drop the pan

Do you feel shaft speed ratios would be affected enough by bad pressure control solenoid, i.e., low pressure causing clutch/band slippage, to cause a code throw? imp

 

[PopRichie77]

If a gear is missing then shaft ratios are wrong, and a code will be produced. Also if slipping occurs, due to low pressure then ratios will be wrong.

 

[MBllnr]

Ok here's my problem now, the threads inside trans at the drain plug must have busted off. The drain plug only spins won't tighten or loosen. I know I will have to buy a new pan but what is going to be the easiest way to drop it and be able to see if there is any metal in pan/

 

[imp]

If a gear is missing then shaft ratios are wrong, and a code will be produced. Also if slipping occurs, due to low pressure then ratios will be wrong.

Not sure what you mean. Planetary gearsets have 3 or 4 pinion gears, a sun gear, and an outer ring gear, any of broken or "missing" would disable the shaft from turning at all.

The literature messed up when calling the issue "wrong gear ratio", I feel. The gear ratios are cut in solid steel, number of teeth vs number of teeth, so less misleading to think of relative speeds of shafts being not as expected, due to clutch, band failure. imp

 

[PopRichie77]

The TSS or turbin shaft speed sensor is mounted in the center support and the OSS or output shaft speed sensor checks the speed of the output shaft, when a gear is selected by the PCM the ratio of the speed of these two shafts must match the preprogramed ratio of the 2 in the PCM if it doesn't match a code is produced.

 

[imp]

The TSS or turbin shaft speed sensor is mounted in the center support and the OSS or output shaft speed sensor checks the speed of the output shaft, when a gear is selected by the PCM the ratio of the speed of these two shafts must match the preprogramed ratio of the 2 in the PCM if it doesn't match a code is produced.

Exactly right! Plus, PCM knows engine speed at all times, so when transmission is in "high" gear, no speed reduction, it compares engine speed to input shaft speed, seeing if Torque Converter Clutch is working, and output shaft speed, looking for something slipping within the transmission. imp

 

[MBllnr]

So I opened up the transmission today and found somethings in the pan. First off there was an abundance of powder like metal shavings on the magnet. The next thing I found was a small piece of metal about a half inch long by probably 1/8 inch thick kind of a triangular break or shape.

The third and finale thing I found was made of brass looks almost like whats left of an o-ring or some kind of keep.

Any information you guys have is greatly appreciated!
Mike

 

[PopRichie77]

Sounds like a broken band and a servo stem repair bushing. Sounds like tear down time.