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Tranny Fluid Change 98 5.0 AWD

rtbrjason

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City, State
Rochester, NY
Year, Model & Trim Level
98 5.0 EB AWD
I was looking into replacing all my tranny fluid with Mobil 1. I was a bit concerned about getting the fluid out of the torque converter, but it seems the converter has it's own drain plug.

If I drain the tranny fluid, and then drain the converter via that plug, will I be getting pretty much all of the old fluid out?
 



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Glacier991

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1992 XLT






performancenut

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Glacier is lost for words here. I'll try to elaborate:

Your method described should be very adequate. Any residual fluid left should be minimal; the thought is that any minute amounts of residual fluid would be diluted so are essentially of no concern. I prefer synthetic replacement fluid.
 






Glacier991

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Could not have said it better myself. Also disconnect the cooler lines and blow all the fluid out of them and the cooler(s).
 






TheJMan

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I'd also recommend changing the transmission filter. Cheap insurance, they are about $30. I got mine at NAPA.
 






je5

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Seems fine if the dipstick says Mercon. If it says MerconV 5, I would research a little further.
 






Glacier991

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In doing my research on the 4R70W Bebuild Diary, I ran across an excellent thread in the Thunderbird Forum on the new (www.Tccoa.com) where a Ford Engineer named Jerry recommends going ahead and using Merc V in the 4R70W regardless.

Having done my research I believe what he has to say. He is the higher authority.

Better yet is full synthetic.
 






Zulu95

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Show Me!
Year, Model & Trim Level
96 LTD V8 AWD SOLD!
I have been using Amsoil since new for all my fluids in my 1996 V8 AWD Limited. Costs a little more but worth it.
 






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