yes. it will only shift into overdrive when it is needed.
if it is an automatic leave it in overdrive. the transmission knows when to change into the overdrive gear. if it is a manual listen to the motor. if you have in overdrive and it bogs down while accelerating then down shift to a lower gear.
It's not recommended to use overdrive on a constant base. It stresses too much the engine as well as transmission.
You should leave the car in overdrive at all times, unless driving conditions dictate otherwise. The overdrive is intended to optimize fuel consumption.
why does the 1991 Lincoln towncars transmission not have overdrive?Instead of going into overdrive it seems to go into neutral.But if you take it out of overdrive and leave it in drive it never goes into neutral while I'm driving.
Overdrive is the normal position - if you are in hilly areas and find the transmission keeps shifting back and forth between overdrive and drive , you can use the overdrive cancel switch to shut off the overdrive feature and if you are towing something you also want to shut off the overdrive
if you dont know what your doing best leave this one to the profesionals as they're very difficult to do
Overdrive is the normally allowed position Until you are travelling around 50 MPH / 80 KPH it won't shift into overdrive anyway If you are towing something , or driving in hilly country where the transmission is always downshifting , then you can shut the overdrive off and the O/D OFF light will light up in your dash
As with most overdrive-equipped vehicles, the most potential for damage is when the transmission is frequently shifting into, and out of, overdrive. This would most likely occur during some city driving, winding rural roads, or hilly areas with a lot of transitions from uphill to downhill, and visa-versa. Unless you notice it kicking into and out of overdrive often, it's probably not a problem to leave it on.
You can leave it engaged all the time if you wish - it will shift into, and out of, overdrive mode when necessary. HOWEVER, if you do a LOT of driving in the 35 - 45 MPH speed range - to prevent the overdrive from "hunting" back and forth, you can disengage it in that kind of traffic.
You should leave the overdrive on all the time. If it is off there will be a od off light that will come on the dash. The trans. will know when to shift into and out of od. Unless you are going down a steep long hill and need engine braking so you don't have to brake as much or pulling heavy loads.
Leave OD on during regular condition driving to conserve fuel economy. Turn off OD to accelerate better and when climbing hills.
load check the battery if not that clean the starter,clean the housing where the starter mount's,clean the battery connection's, do a voltage drop and chek 4 unwanted resistance if you cant do that take it to a shop and leave it to the pro's