Remote Tranny Filter Installation
I have a 2006 4.0L 4x4 w/ a 4R55E and installed a B&M remote tranny filter. Before installing lines I called a Ford dealer to find out which line is supply to the cooler and which is return. Said just crack the fittings and see which flows out. OK...?
Couldn't get to the flare fittings on the tranny so I disconnected the rubber lines from the cooler and plugged 'em with bolts. Started the truck and as I removed the first bolt fluid spit out and flowed. Supply right... well... when I removed the bolt from the other line (why not?) it spit fluid and flowed?! I held the lines side by side and used the one with the most flow for supply to the filter.
So, as with other things I am left with more questions than answers again.
For example; why the big deal about having a tranny cooler for towing when the flow indicates it is a passive system? The difference in flow is noticable BUT with such a small difference in pressure between the two lines it will not act like an active system, such as a radiator with high volume heat transfer.
I am wondering if an auxillary pump in the cooler line would make this an active system OR...
which line is which?
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2006 4.0 5 spd auto 4x4 Super Cab
BF Goodrich Commercial Traction T/A's
Royal Purple Throughout
Alpine Head Unit with some Infinity Noisy Stuff
NW Oregon
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