Doesn't look good for me

Well, I wrote a while back, my temp guage was dropping to nil when I reached about 70-75 mph. or about 3500rpms and it felt like it would lose power or bog a bit, well that has stopped. Yup, one day it just stopped, and the ck engine light came on. Now that is gone also, and if runs like it use to, except that it leaks tranny fluid like a sieve and I think oil now too. :banghead:
The shop over filled my oil, and since it has leaked.

Can anyone tell me, without a fee, how bad it is to overfill the oil. Even if it is "only a quart or so" as the guy at the shop so deftly pointed out?

Please? Thanks you guys!!

on the temp guage sounds like your thermast was stuck open. on the tranny fluid leak.the bolts on your pan must be torqued to a certain spec in order in to leak and or change your tranny pan gasket