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Four speeds on your transmission and the overdrive is when the engine speed and the transmission speed are engaged is a interchangeable load. running "free" sort of
Overdrive relay switch behind the middle air vents..... Manual Transmission: the wires sometimes break if it is the type with the button on the gear/knob/ stick........... if it is a manual transmission.......the switch on the gearbox which tells when 4th gear is engaged can be faulty.....and will not allow the overdrive to engaged.
Many Ford automobile and pickup transmissions have an overdrive function. Most can be turned on and off with a push-on, push-off switch, . The lighted OD-off or indicates that the overdrive function is disabled, turned off. If, while the vehicle is running, you push the button adjacent to the indicator that says OD-off, you will turn on/enable the overdrive function. When the overdrive function is enabled, the OD-off lighted indicator goes of, and there is no indicator when the overdrive is engaged.
For most drivers, Overdrive should be used full time. Its designed to reduce the amount of effort the engine needs to maintain speed. Whenever a lot of shifting is taking place, its recommended to only used Drive. Roads with a lot of hills, curves, or heavy traffic areas should not use overdrive to prevent damage to the transmission. Also, disengage overdrive whenever towing. There is not enough torque generated by the engine to tow while in overdrive. Towing while overdrive is engaged can cause damage to the engine and transmission.
The overdrive is designed for speeds after 50 mph so your overdrive should not be engaged until you are driving on the highway. The overdrive gear is designed for fuel efficiency and does nothing in town.
Yes you can on the highway. If your not going to be slowing down or stopping. take the od off if it constantly hunts for gears though as the transmission may over heat then.
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This vehicle has an almost unnoticable shift into overdrive. You will notice your revs go down slightly when it engages. if your car has been stuck in 2nd gear then your transmission has automatically engaged protect mode and you should immediately take your vehicle to a repair shop.
Typically Overdrive is engaged when cruising, when the car is in top gear. Whether the activation button is on the dash, or on the gear selector, makes little difference to how the Overdrive system works.
Overdrive engaged saves fuel.
Over Drive. The overdrive should always be engaged. NO the overdrive should not always be engaged, you will eat more gas around the city and put more stress on you tranny, ans those trannys dont need that
I have to assume you mean "What is a Doug Nash 4+3?" If that is the case then I can answer that question. The Doug Nash 4+3 is a transmission that Chevy used in the Corvette from 1984-1988. It is a Borg Warner ST10 gear box with a Doug Nash overdrive unit mounted on the rear of the transmission. It allowed 4 forward gear ratios by shifting the manual ST10 portion of the transmission and an additional 3 forward ratios when the overdrive unit was engaged in gears 2,3 and 4 thus the name 4+3.