91 RX-7 automatic, does not have turbo. When I am driving , the car shifts very late (around 5000 rpm's). This happens in all gears. If I let off the gas in any gear, the car will shift.

I think this is a vacuum problem, but I am not sure what hoses to look to for possible culprits.

 

How long since a tranny fluid & filter change?

Click here to download some good reading

 

heh... i always thought it was natural to shift at 7500

then again, check the sig, heh

I wonder what ever happened to the thread about changing tranny fluid... oh well.