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Overdrive is the name given to the highest possible gear available in a transmission. Of all possible gears, this high gear gets the RPM (revolutions per minute) of the wheels closest to the RPM of the transmission. This is typically used for highway travel at high speeds and has the highest mpg for the vehicle. In high gears at high speed, the engine has good power available to propel the vehicle. But at lower speeds, in high gear, the engine power available to propel the car diminishes. This leads to the O/D overdrive button in some vehicles. This mode is typically used when towing or driving in hilly or mountainous areas. Since the power diminishes as lower speeds, in high gear, the transmission needs to compensate when driving under these two conditions. The trans will try to match the best gear with power available at various engine speeds and vehicle speeds. Sometimes, this may mean switching to a lower gear with higher engine RPMs. This allows more power to be available to climb hills or tow loads up an incline without the driver being forced to shift to lower gear manually (gears 2, or 1 in automatics, or shifting down to 4th, or 3rd gear in standards).
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How does the overdrive button work on a Ford Windstar?
Pressing it will disable the overdrive.
Why does overdrive not work on 1992 Dakota?
Overdrive might not work on a 1992 Dakota because there is a problem with the transmission. The shift solenoid or a belt is not functioning properly inside the transmission.
Why would a Mitsubishi Space Wagon overdrive light come on and go off but the overdrive does not work?
take it to a trans shop.
Overdrive button does not work on your 1993 dodge Dakota?
Get it fixed
What would cause your overdrive switch to not work on a 1995 Mazda Protege when passing a car and the overdrive switch is off it won't automatically shift down to accelerate?
If the overdrive switch is turned off then the car will not go into overdrive. As it is not in overdrive, then it will not downshift out of overdrive as it normally would. It also will not shift to 3rd gear above a certain factory preset speed. Turn th overdrive on and see if it operates normally.
How much work is involved to replace the overdrive switch on a Hyundai?
Are you assuming that your overdrive is not working? I have same problem, no indicator on dashboard to say overdrive is on or off and revs about 5000rpm at 70mph so I know overdrive is the problem. I will try to run a live feed to the one of the wires going to the overdrive switch. Does anyone know where fuse for O/D is??? Also clock flickers and interior ligh doesn't work if it's related????
Why does your overdrive button not work?
did u try and change the fuse , or the switch
Your Ford Windstar over drive does not work?
The overdrive in the Windstar could have an internal problem, or the control from the overdrive button may not work. Run a check of computer codes to see if a problem shows up.
What are the uses of overdrive and when should it be used?
Overdrive is for highway driving, which is great for gas mileage. Also, not to use overdrive when going up or down hills because it makes your transmission work harder. That's what I was told anyways.
What if overdrive doesn't work on 2001 crown Victoria?
No biggy.. my 1992 ex police overdrive went out and I still drove it another 35000 miles that way..
Your 1991 Ford Explorer will not shift into overdrive?
Plain and simple the overdrive switch is pmost definitely bad take to a professional if you don't know what your doing,go to a shop that specializes in electrical work NOT THE DEALER,they will tell you your overdrive is burned out.
How does the overdrive button work on a dodge truck 1999?
When you push the button in, a signal is sent to the PCM to "block" overdrive.When you push the button in, a signal is sent to the PCM to "block" overdrive.
