View Full Version : Ever wonder why your CD4E failed ???
RoadRunner
09-24-2002, 06:44 PM
This article was brought to light on the www.contour.org forum.
FilterTek Press Release (http://www.filtertek.com/Ford%20Award%20Page.htm)
This was an award given by FORD to FilterTek for solving the
EARLY WEAR OUT PROBLEM of the CD4E Transmission.
RoxStar
09-24-2002, 08:14 PM
I wonder what date they fixed this. I hope my car is not affected:(
mcon99
09-25-2002, 11:28 PM
well the smart thing for EVERYONE with an ATX to do is obviously drain your tranny fluid, get under the car, drop the pan and change your filter now if it hasn't been done recently... then I would probably change it at least every 3 or 4 oil changes after that.
Ripple
09-25-2002, 11:57 PM
Yeah very interesting. Thanks for the post Pete. I'm definately going to look into changing the filter soon. I figure by doing this and putting in the inline filter like ford suggests, I'll have better luck with my tranny lasting.
RoadRunner
09-26-2002, 12:35 AM
Originally posted by: mcon99
well the smart thing for EVERYONE with an ATX to do is obviously drain your tranny fluid, get under the car, drop the pan and change your filter now if it hasn't been done recently... then I would probably change it at least every 3 or 4 oil changes after that.
You CAN'T !!!
The Filter is only changed when the transmission is REBUILT !
There isn't a BOTTOM PAN on the CD4E, just a drain plug.
RoadRunner is right. The "pan" is under the hood, in front of your air filter. When you take it off, theres nothing under there. The filter is INSIDE the transmission.
I learned this the hard way.
reptar
09-27-2002, 09:28 PM
You really probably shouldn't need to change your filter more than once. Most of the debris it catches comes from initial break-in and manufacturing contamination. Still, I suspect that the pump is probably a bit undersized (or poorly designed) and that's why it has high-speed flow problems. FilterTek's solution is probably a bit less restrictive than whatever was there previously, so the pump fills a bit better. I'm a bit disturbed that there's so little headroom in the transmission though...
Hmm... after rereading this post, I notice it's a little boring. Sorry, I'm a pump engineer...
MrFroge
10-03-2002, 05:45 PM
So what do we do now?? Install an external filter and hope for the best??? FORD Grrrrrrr :disgust:
Ripple
10-03-2002, 06:56 PM
Originally posted by: MrFroge
So what do we do now?? Install an external filter and hope for the best??? FORD Grrrrrrr :disgust:
Yup. Here the thread (http://www.fastcougar.com/forums/messageview.cfm?catid=53&threadid=45689). I ordered one up about a week ago. Next fluid change I do, this thing is going in.
reptar
10-03-2002, 08:21 PM
Interesting... these seem to me to be unrelated problems though. The problem originally discussed in this thread had to do with bearing failures due to inadequate oil flow. The other thread about the inline cooler filter would seem to have more of an effect on transmission heating...
I guess I'm not sure how things are arranged. I suppose if the cooler is downstream (and in-line) with the oil squirters, a blockage there could cause enough of a restriction to hurt pump output.
At any rate, I hope this solution works for you guys.
sndxrnd21mb
10-09-2002, 02:23 PM
Hmmmmm, i guess i should have seen this earlier since i JUST turned over 20,000 miles and my cd4e died. It would start in random gears, and then never go past 3k rpms, and reverse would randomly work. Time for a manual
Mity2
10-14-2002, 10:07 PM
CD4E? WF is that?
reptar
10-15-2002, 08:28 PM
CD4E is Ford's code for the automatic transmission used in the Cougar. In case you see it elsewhere, the manual box is the MTX-75.
RoadRunner
10-15-2002, 11:25 PM
Originally posted by: reptar
Interesting... these seem to me to be unrelated problems though. The problem originally discussed in this thread had to do with bearing failures due to inadequate oil flow. The other thread about the inline cooler filter would seem to have more of an effect on transmission heating...
I guess I'm not sure how things are arranged. I suppose if the cooler is downstream (and in-line) with the oil squirters, a blockage there could cause enough of a restriction to hurt pump output.
At any rate, I hope this solution works for you guys.
I don't understand how you can't see the relation here...
If the bearings aren't lubricated, they will produce heat, correct ?
They will produce heat because of the friction cause by inadequate oil for lubrication.
When the bearings get hot enough they melt and fail.
See the connection ???
reptar
10-16-2002, 10:21 AM
The circuits for the oil squirters and the circuit for the cooler are often in parallel, so a blockage in the cooler (as discussed in the other thread) wouldn't really affect oil going to the bearings. I don't know if this is the case in the CD4E or not. As far as the topic of this thread (blockage of the pump inlet filter), it certainly could also lead to problems with inadequate lubrication in the bearings. You're right, if you starve a bearing of oil, it will fail.