Fault in the Crankshaft position sensor
If you accelerate and the transmission shifts to a lower gear of the overdrive disengages the RPMs will increase. If the vehicle has a manual transmission a slipping clutch will cause the RPMs to increase if the clutch is defective.
It sounds like fuel starved. Try the fuel filter or the fuel pump.
don't accelerate as much or change up a gear
The engine is turning more revolutions at the lower gear. Once you shift into a higher gear the rpms drop.
You may have a faulty coil. Check mass air flow sensor
You most certainly do, it is called overdrive. You may be able to achieve high speeds in 4th gear, BUT you can also acheive those speeds in 5th gear but with lower RPMs, thus resulting in an increase in fuel economy
In this particular sinerio , you would calculate the unit rate.To do so you simply divide 40 by 4 (10), then divide 10 by 4 as well. Therefor a gear with 10 teeth turns with 2.5 rpms.
It depends on what type of car and what gear you are in
The fastest gear ratio for achieving maximum speed in a vehicle is typically the highest gear ratio, such as overdrive gear. This allows the engine to operate at lower RPMs while maintaining high speed, resulting in better fuel efficiency and top speed.
I have a 1992 Asuna Sunrunner. 1.6l 8 valve/ stock (yet). Runs about the same
Shift to a lower gear. Lugging will damage your engine and should not occur if you are in the proper gear for whatever you are doing. On your silverado if it is an automatic you should have a trailering button in the end of the gear shift to turn the trailering mode on and cause the vehicle to shift sooner when carrying a load even if you aren't pulling a trailer.
Engines work best in a certain range or RPMs (revolutions per minute). The time to shift is when you've moved outside that range. If the engine is spinning fast you change to a higher gear, if the engine is spinning too slow you shift to a lower gear.