It depends... if you fall asleep your cars not gonna suddenly stop or zoom off. It could do either or stay the same speed. The point is that you cant steer! not how fast it goes. anyway... you shouldn't fall asleep at the wheel anyway. have a cooffe or something.
Sure it is dangerous. Carbon Monoxide can seep into the vehicle while you are driving and cause you to fall asleep. Not a good thing driving down the road.
your speed sensor is failing, the speed sensor is located next to your oil filter it controls your speedometer
speed sensor
Yes, if you advance to full speed in any terrain vehicle in GTA V, you will gain an extra speed boost. Make sure you are going full speed though.
Because it does and that's okay :D
the transmission is slipping
Press the brakes or down shift
Turning can affect speed while running because it requires changing direction which can slow down your momentum. To maintain speed when turning, it is important to use proper technique such as leaning into the turn, taking wider curves, and driving with your arms.
no it will slow it down
If its a motor knock it will do that while sitting/reving engine not just driving. If it's only while driving try different things to check it out. Does it do it over bumps?(parking lot speed bumps are a good test track) Maybe only when cornering? Try pushing up & down on the truck while its sitting and see if it does it. Does it shake also?
Check the speed sensor
deer