When your car suddenly starts shaking as you press the acceleration pedal, this is a cause for alarm and is a sign something is wrong with your car.
Since shaking happens when you press the gas pedal, this could be an engine issue, drivetrain issue, and wheel or tire issue.
What causes a car to shake when accelerating includes the following: a worn spark plug, faulty ignition coil, faulty fuel injector, damaged fuel pump, contaminated fuel, worn engine mount, faulty axle, failing torque converter, uneven power to the wheels, worn bushing, a deflated tire and Loose lug nut.
A shaking car can be fixed by visiting a nearby mechanic for a proper diagnosis and repair. Ignoring a shaking car can further damage the car engine and transmission which can be expensive to repair or replace. Fixing this issue early can also prevent road accident during acceleration.
Here in this article we would discuss what causes a car to shake when accelerating and how to fix this issue.
What Causes Car To Shake When Accelerating And Solution
Why Is My Car Shaking When I Accelerate
Worn Spark Plug: A worn spark plug can prevent the engine cylinder from properly igniting the air – fuel mixture, hence causing a misfire.
Faulty Ignition Coil: A faulty ignition coil prevents the spark plug from receiving enough volts required to create a spark.
Faulty Fuel Injector: A stuck open injector from a faulty solenoid which fails to close sprays excess fuel in the cylinder and causing a rich mixture. While a clogged fuel injector from a solenoid which is not properly energized to spray enough fuel in the cylinder causes a lean mixture. Both a rich mixture and a lean mixture causes a misfiring engine.
Damaged fuel pump: A damaged fuel pump can prevent the engine from receiving fuel from the injectors.
Contaminated Fuel: A contaminated fuel in the fuel tank can lead to misfire and a shaking engine.
Worn Engine Mount: The engine mount can get worn out from rust overtime causing the car engine to shake when you press the acceleration pedal.
Failing Torque Converter: A failing torque converter with a worn clutch from a degraded transmission fluid can cause a car to shake when accelerating.
Transmission Issues: A worn out clutch or internal bands can prevent the transmission from failing to transfer power to the wheels.
Worn CV Joints or Axles: Your car can shake from the high stress when accelerating from a damaged CV Joints or Axle.
Damaged Driveshaft: a damaged driveshafts can cause your car to shake when accelerating.
Worn Bushing: A worn bushing can cause the control arms to shift excessively and vibrate when driving at high speed.
Deflated or Worn Tire: A deflated tire can cause shaking wheel when accelerating.
Loose lug nut: you car can woo or and shake when accelerating if the lug nut are not properly tightened.
What Causes A Car To Shake When Accelerating
Engine Issues
A worn out spark plug, and a faulty ignition coil prevents air / fuel from igniting thereby creating a loss of power in the cylinders.
A stuck open or clogged fuel Injector, a damaged fuel pump and an contaminated fuel (water and fuel mixing together) are causes of a shaking car when accelerating.
A worn engine mount can get worn thereby failing to absorb vibration during acceleration.
Drivetrain Issue
The component of the drivetrain includes: the transmission, drive shaft, wheels, differentials and axles. A problem from one or more components can cause shaking when accelerating.
A failing torque converter with a worn clutch from a degraded transmission fluid.
A slipping transmission failing to transfer power to the wheels when you press the acceleration pedal.
A worn CV Joints or Axles or driveshaft can cause your car to shake due to the high stress when accelerating.
Wheel & Tire Issue
A worn bushing can cause the control arms to shift under load and uneven tire wear. A loose steering and a shaking car are signs of a worn out bushing.
A deflated or worn out tire can lead to an uneven rotation at high speed. Shaking would be felt on the steering wheel when you press the accelerator.
A loose lug nut, not properly fastened can shake and wobble when you press the accelerator.
How do you fix a car that shakes when accelerating?
To fix a car that shakes when accelerating, check, test and replace a faulty / damaged component:
Worn Spark Plug, faulty ignition coil, Faulty fuel injector, Damaged fuel pump, Contaminated Fuel, Worn Engine Mount, Failing Torque Converter, Transmission Issues, Worn CV Joints or Axles, Damaged Driveshaft, worn bushing, Deflated or Worn Tire or Loose lug nut.
Conclusion
In conclusion, kindly visit a nearby mechanic for proper diagnosis to check out out what causes a car to shake when accelerating, as this is a sign the car often diagnoses as an engine issue.