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The spark timing might be too advanced. At high temperatures and RPM an advanced spark might cause preignition, and engine knock. That's only likely to happen if the engine is modified though.
Other than that, check the air and fuel filters are clean, as the harder the engine has to work the more a clean flow of both is important.
What else can I help you with?
What causes a car and the steering wheel to shake when turning left at high speeds?
have front suspension checked
What causes rattling in the front passenger side of a car especially when going over bumps and not when on the highway or at high speeds?
Possably the struts!!!!
What causes car to shake when idle?
Cylinder misfire. Possibly failed or failing engine mounts.
What happens if the sway bar breaks?
It can be very dangerous especially at high speeds in a curve. It causes the rear of the car to become very unstable.
Car makes loud knocking sound at high speeds?
A loud knocking noise in the motor of a car at high speeds is most likely the engine. There could be another issue with the transmission if the knocking only happens at high speeds.
What causes siren noise when car is accelerating at high speeds Its not the belts. We are talking about on the highway doing 70mph siren noises occur?
wind noise
Why does my car jerk at high speeds?
A car that is jerking at high speeds probably needs a tune-up. Barring any major mechanical issue, this will solve the problem.
What makes ar car wobble at high speeds?
islam.
What causes a diesel car to emit alot of black smoke and engine misfire and run poorly?
one of the causes of all three symptoms is a bad fuel injector
What causes the car to hesitate when accelerating at speeds below 20mph?
Bad speed sensors can cause the car to hesitate when accelerating at speeds below 20 mph. The blockage of the air filters can also cause the car to hesitate when accelerating at speeds below 20 mph.
What causes a car to jerk sometimes at different speeds?
Slippage in the transmission or a bad torque converter
What causes a car to jerk while driving?
What causes a car to jerk while driving can be based on many factors. A car can sputter due to engine compression issues, bad transmission, engine misfire, bad spark plugs or even low fuel.
