Tranny Fluid Change 98 5.0 AWD

[rtbrjason]

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?

 

[Glacier991]

Yes.

 

[performancenut]

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]

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]

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

 

[je5]

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

 

[Glacier991]

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]

I have been using Amsoil since new for all my fluids in my 1996 V8 AWD Limited. Costs a little more but worth it.