What happens when the speed and gear of a manual transmission do not match?

[GiaLynn]

When the speed and gear of a manual transmission do not match, the car may be fine for a short time, but prolonged operation can accelerate wear on mechanical components and lead to premature damage to the engine and transmission. Shifting without passing through neutral: Shifting into second gear without passing through neutral causes the computer to still think it is in first gear. Driving at second gear speed under this condition makes the computer perceive a mismatch between the first gear speed and the actual speed, leading to an assumption of mismatched RPM. Clutch pedal not fully depressed: If the clutch pedal is not fully depressed during gear shifting, shifting to a higher gear and increasing speed will result in the sensor not receiving the gear shift signal, causing it to assume the transmission is still in the lower gear.