car won’t shift into fourth and over drive is gone
08-14-2018, 08:47 AM
#1
Thread Starter
Join Date: Aug 2018
Location: North Carolina
Posts: 4
car won’t shift into fourth and over drive is gone
Ok so just recently I had a mechanic remove my differential because the old one was messing up he installed everything but didn’t mark the drive shaft and differential he just put the drive shaft in and now it won’t shift into fourth and uses 3rd as overdrive
08-14-2018, 10:21 AM
#2
What year is your car, and is it an auto? Which auto specifically? Was the driveshaft also removed from the transmission or just from the differential?
What does the mechanic have to say about this? Because I wonder if this is electronic related, as I'm not sure how removing the driveshaft from the diff (and possibly the transmission) would make it not shift into OD.
What does the mechanic have to say about this? Because I wonder if this is electronic related, as I'm not sure how removing the driveshaft from the diff (and possibly the transmission) would make it not shift into OD.
08-14-2018, 10:51 AM
#3
3rd Gear Member
Join Date: Aug 2015
Location: SE Michigan
Posts: 939
I wouldn't worry about the flanges not being marked. The driveshaft is balanced separately, apart from the pinion flange. Besides, an imbalance would result in driveline vibrations, not shifting trouble.
If this is an automatic, check the shifter linkage and the MLPS switch mounting.
If this is an automatic, check the shifter linkage and the MLPS switch mounting.
08-19-2018, 07:51 PM
#9
5th Gear Member
Join Date: Jul 2012
Location: ohio
Posts: 3,628
Yes the speedometer needs to be working correctly for the car to shift properly. Even with my manual trans when they installed the wrong year t45 in the car and the speedo didnt work the engine would surge and sputter once in awhile when coming to a stop or inbetween shifts.
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