Join Date: Apr 2009
Location: Madison, Wisconsin Area
Feedback Score: 0 reviews
4R100 Inline transmission filter question
My transmission (and van) has 216k on it, the first owner seems to have taken good care of it. I installed a small inline filter (from Ford) inline back in august, had trans flushed at that time also. I don't think flushing the trans does anything to kill it but it may have broken gum loose that might also be plugging the filter. I was searching the posts and read that Ford does not recommend the small inline filter anymore, was required when I replaced another trans a few years back. I suspect a flow issue at the filter when it gets below zero, perhaps due to plugging issues? OD light flashes intermittently when below zero, need to download codes when I get home.
Anyhow, I want to replace the fluid with Mobile1, was happy running this in other trans, and want to add some type of external filter - I would assume a spin on filter would have less flow restriction due to larger internal surface area - would like to know if anyone has suggestions on best filter setup to use, keep in mind that there nowhere to mount anything under the hood, frame mount would be best.
I will be using Marks trans fluid change procedure, used it years back and didn't have any problems.
Will also flush the radiator trans cooler and replace existing trans cooler with a larger cooler during fluid change.
I have also ordered a transmission bypass rebuild kit that I will instal before fluid change. These are cheap enough and might prevent a spill...
One other thing is I have an Edge 15001 that I will install that reads codes (still not sure if the edge will display all codes) and can display the trans temps - how accurate is the existing OEM trans temp sensor? I could install a wired sensor - any suggestion on best place to install aux trans temp gauge?
I plan on installing the edge only for gathering information at this time. Before changing anything in the trans I'm going to get info out of the edge then go from there. A friend of mine is heavy into Ford diesels and he probably has a good reader if the edge does not display codes or to double check.
Once I drop the trans pan and see what condition the magnet is in I'll go from there, if it's hairy I'm planing on putting in the Ford reman HD I have, the reman HD also has the HD TC. The reman has 15k on it.
If I decide on changing out the trans are there any mods that I should think of adding before installing the HD reman? I (mostly the wife) tow a travel trailer (about 7k) about 10 times a year and I don't want problems popping up...
I won't get home for another two weeks and want to get whatever items ordered (external trans filter, etc.) so I can get into it when I get home...
Thanks in advance.
2001 E-350 7.3 Diesel - 285,000, Amsoil 15w 40 or Shell Rotella T6 5w 40 synthetic, New water pump @ 216k, Tru-Cool MAX transmission cooler, Bilstein Shocks, Edge 15001 programmer with gauges, AutoEnginuity / Domestic Enhancements, Diamond Eye 4" Performance Exhaust, Delphi CPS, Ford HD Steering Stabilizer kit and Bilstein Stabilizer W0133-1915818, 2003 Telescopic Towing Mirrors!
Last edited by minalba; 01-29-2012 at 12:06 PM.