1997 Mercury Mountaineer Q&A

1997 Mercury Mountaineer Question: When shifing to overdrive, the car makes a grinding sound---

--- when driving, the car makes a grinding sound when shifing to overdrive----similar to riding over rumble strips--why???? -
Answer 1
Hello, Were you able to find out why the overdrive was making noise? Was it something inside the transmission? -
Answer 2
my mecury does the samething been doing it for over a year doe not get anybetter or worse but till drive it wish I could find out what it is also -
Answer 3
It is normal lol when you put it on awd, cuz what happen the sensors wont let you go faster that certain revolutions and they automatically stop the vehicule to maintain the speed very low, try to push the button awd once or take it to the dealer so they can reset the code or fix any bad sensor, good luck.. -