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

--- when driving, the car makes a grinding sound when shifing to overdrive----similar to riding over rumble strips--why????

by in Odenton, MD on September 15, 2009
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3 answers
ANSWER by , October 27, 2009
Hello, Were you able to find out why the overdrive was making noise? Was it something inside the transmission?
ANSWER by , August 27, 2012
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..
ANSWER by , September 08, 2010
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