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map40's avatar
map40
Explorer
May 19, 2016

2014 E450 trans fluid change manual error

So one of my motorhomes reached 30K miles and I went to the manual to see if I need to do the trans fluid flush.
Per the manual, 5 speed trannys change oil and filter at 60K.
Extreme use schedule is 30K for oil and filter but clearly stated FOR THE 4 SPEED TRANSMISSION.
I called Ford Motorhome to ask, and they told me:
- First, they reccomended 30K, to err on the safe side. When I said "OK, but what is the requirement" they could not answer. When I showed them the 4 vs 5 speed note they told me that those were wrong, 30K for both
- Second they told me that I needed to drain and change the filter. I asked if I was suppoused to flush it and they told me no. When I told them all other ford transmissions required a flush instead of a drain, they told me that yes, I needed to flush, not drain and to also change the internal filter.
I brought up the fact that changing the internal filter would force me to drain, they told me to drain, change filter and then flush.
At this point I explained them that their flush machine is by fluid volume, so a flush AND a drain is not physically possible. They did not know what else to tell me.
Does somebody know what the $#%&% procedure is? Looks like Ford doesn't.
Note: I went to the dealer, and as they don't service motorhomes, they could not tell me how to do it or sell me the filter...
  • Just dump the pan, change the filter, refill. In about 10K miles, dump the pan again, refill, another 10K, do it again. Keep doing that, you will have fresh fluid throughout and very little of the old fluid will remain mixed in. I do this with a little Pontiac Vibe I have (Toyota Matrix in Pontiac clothes) and have been doing this for a 100K miles now. The fluid looks like new when I change it, every oil change.

    If you don't have a drain plug, first time, when you pull the pan to do the filter, get an aluminum pan with a drain plug. This will make it easy, add more fluid capacity and thus make it run cooler, and the aluminum pan will help with the cooling too.

    Charles
  • Baja Man wrote:
    The E40D and 4R100 are all pre 2005 trannies. They can be fully drained/serviced cold. The 2005+ 5 speed trannies, can not. A hot flush machine must be used to exchange all fluid.


    Or why I hire it done
  • What is the approx drain and fill capacity for the 5 speed 5R transmission?
  • The E40D and 4R100 are all pre 2005 trannies. They can be fully drained/serviced cold. The 2005+ 5 speed trannies, can not. A hot flush machine must be used to exchange all fluid.
  • I believe the flush is a hot flush...meaning a machine that heats the fluid and transfers old fluid out and pumps new fluid in. The heat is required as the 5 speed has a thermostat that opens at 165F-170F. If you drain pan and replace the filter, it will only remove about 7-8 qts of fluid.

    As far as the recommended mileage for fluid changes, I amk not sure. 30K is not going to hurt anything. Here is more on the subject....

    5R110W trans service