Saves gas on the freeway when cruising by lowering engine rpm. Watch tack at 70 mph with & without it on & you will see the difference.
It needs a tune-up.
Select the " D " with the circle around it for overdrive Select the " D " if you only want to use the first ( 3 ) gears and no overdrive
MOST LIKELY THE COOLING FAN FOR THE VEHICLE, COMMON WITH CAVALIERS. NEEDS TO BE OILED IF YOU WANT THE SQUEEKING TO GO AWAY.
Overdrive ON is the normal position But if you are towing something or driving in hilly country where the transmission is constantly shifting from overdrive to drive , then you want to switch the overdrive off
Your vehicle has an overdrive button on the shifter maybe. When you start your vehicle, overdrive is always on. When you tow something, you want the overdrive to be off, otherwise the transmission will run hot and that will lead to bigger problems.
If you don't want the transmission to shift into overdrive ( such as when towing a trailer , or driving in hilly country where the transmission is constantly shifting between drive and overdrive ) push the button on the end of the gearsfift selector ( P R N etcetera ) and the O/D OFF light will appear in your dash . Overdrive is the normally allowed position , but on my 1995 Ford Explorer doesn't shift into overdrive until I'm going around 50 Miles Per Hour
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
Only if you want to shut off the overdrive feature , because overdrive is the normally allowed position
Overdrive is the normally allowed position . It won't shift into overdrive until the speed is fast enough anyway , but if you are going up and down hills and the transmission keeps downshifting you might as well turn the overdrive feature off until you are out of the hills Just adding to the answer : Also if you are towing something you want to shut off the overdrive
Overdrive is the normally allowed position It won't shift into overdrive until the speed is faster ( but if you are towing something or driving in hilly country where you notice the transmission is constantly shifting between overdrive and drive , then you want to shut off the overdrive using the switch on the end of your gear selector lever , O/D OFF will light up in your gauge cluster )
So first I do not have this vehicle. In general when you see overdrive light flash or stay on, it means overdrive has been turned on. In most vehicles the overdrive button is either on the gear shifter or on the stiring colum. If you dong want or need overdrive on then just press the button. If your light stays on, then it could be something different and not so simple.
I own a 2000 and it's on the gearshift. I honestly can't think of a time that you would want to turn it off...possibly going down a long steep grade and then it wouldn't be that much help.