tranny problems!

L

lightningjack

New member
03 few mods trans acts up at wot feels like it shifts from 1st to od.jerks hard but if you turn off od it runs and shifts perfect.any help guys?
 
I don't know about the OD issue but...

I changed my plugs last night. When I drove the truck, it shifts like a monster. It feels like a GT I just sold that had a 3k stall, shift kit and 4:10's... IDK. Maybe somone will read this and help us both out.
 
I have a ??? It's about Transmission fluid. I have read on here about all these people using different transmission fluids and did not get the answer I needed. I called the Ford dealership and they said Mercon V is the fluid recomended for the L. Why are people using this dextron/mercon and Mercon III stuff? Why not use what is needed?
 
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