rookie94sc
Registered User
A while back I put in a remfr'd tranny from ford in my 94 SC... I was under the impression that one should use Mercon V tranny fluid in the 4R70W instead of the normal Mercon due to better heat handling properties and such... So when I put the tranny in I drained all the fluid that came with it... Put on a 96/97 deep sump pan and filter and put in Mercon V instead of normal Mercon... Now after 15k my tranny's slipping and I get a whine I believe from the transmission... Is this due to the fluid or did something else most likely go wrong? I bought the tranny just after the switch to the 3yr/36,000 mile warranty kicked in so I have that warranty on the tranny... but I don't wanna take it in until I have an idea what's wrong so I don't get screwed over by ford...