Speeds at which shifting must occur

[ksaman2004]

I have grand marquis 97.
Can anyone tell me about the speeds at which shifting of speeds must take place?

Thanks

[fredjacksonsan]

Depends on how much gas you're giving it. At full throttle, maybe around 40mph to shift to second, then 70-75 for third and if you keep it floored, you might never get o/d. (That's how my 93 would shift) Of course with light acceleration it'll shift more like 12/25/40 or something like that.

Hope this helps

[96marquisboi]

is this manual shifting or automatic? if ur shifting in an automatic then its about 18/to about 35/ to about 60. thats on my 96