What does overdrive do to a car engine?
Overdrive is just a special gear that reduces the burden on an engine. In simpler words, it configures the engine to perform optimally according to the current requirements. An engine creates more power in lower gears where the gear ratio lies above one. A gear ratio over one means an engine is producing more power.
Is it bad to use Overdrive all the time?
It is never a good idea to tow a car in overdrive gear. When you are towing a car – you would prefer to have as much torque as possible. The overdrive gear is giving exactly the opposite, lower torque. Is It Bad To Use Overdrive All the Time?
What is the gear ratio for overdrive in a car?
In modern vehicles, the overdrive gear is often referred to as gears with a ratio lower than 1:1, which is often the highest gear or the two highest gears. A gear ratio over 1:1 means that the output shaft spins faster than the input shaft on the gearbox. In overdrive, the gear ratio is between 0.6 to 0.8 against 1.
Why does my truck shake at 45 mph?
Also, this problem does not happen when overdrive is turned off, so I often find myself switching into overdrive when going up hills or accelerating around 45 mph. Something else that is strange is that the truck has not thrown a single engine light. This is not a rough idle shake, this is a very noticeable, rough, shake.
What should engine RPM be with overdrive transmission?
Also with an overdrive transmission, your engine RPM will be approximately 20 to 30% less than shown here depending on the overdrive ratio.
Also, this problem does not happen when overdrive is turned off, so I often find myself switching into overdrive when going up hills or accelerating around 45 mph. Something else that is strange is that the truck has not thrown a single engine light. This is not a rough idle shake, this is a very noticeable, rough, shake.
Overdrive is just a special gear that reduces the burden on an engine. In simpler words, it configures the engine to perform optimally according to the current requirements. An engine creates more power in lower gears where the gear ratio lies above one. A gear ratio over one means an engine is producing more power.
What should the engine RPMs be when driving?
It seems to happen primarily when traveling between 45-55mph. When driving, slightly accerating, the truck is doing about 1100 rpm in its 6th gear. The engines RPMs seem to bounce back and forth 50-100 rpm.