I had this same problem with an older s10, it happened on the hwy, so I don't know how relavant this is. I couldn't get it to go over 30k/hr and it turned out that there was no Transmission Fluid left. Check it out. I hope it helps.
Find a bigger hill
it hesitates because its governed and it wont let you go over 100 mph so when your accelerating it starts to hesitate around 70 to 80 mph you cant go over 100 mph
Several things it could be, but frankly, if it's that bad, get a mechanic.
Bad Transmission, you need a new one.
Safety feature is tripped, bring in the car to a shop.
yes & no if your motor looses compression your car wont go over a limited
61 mph I've been over 100mph in mine. 4L Auto 1995
most cops wont pull you over for just 5mph over, or they would just give you a warning
This is a safety feature. It has a limiter on it.
Rock in impeller. Take bottom grate off and get to the rock with a screwdriver.
your cam-shafts could be broken pistons could be bad or you could be driveing a ford
If your 2006 Malibu will not go over 40 mph it may be stuck in "limp home mode." You will need to have the car checked out by a mechanic.