Transmission Related:
* Low Transmission Fluid: Insufficient transmission fluid can cause slippage, leading to slow acceleration and shaking. Check your transmission fluid level (consult your owner's manual for location and proper checking procedure). Low fluid might indicate a leak, which needs immediate attention.
* Slipping Transmission: Worn clutch packs or other internal transmission components can cause slippage, resulting in poor acceleration and shaking. This is a serious issue requiring professional repair.
* Transmission Problems (Internal): More severe internal transmission damage, like broken gears or a failing torque converter, can manifest in slow acceleration and shaking. This often requires a complete transmission rebuild or replacement.
Engine Related:
* Spark Plugs/Wires: Faulty spark plugs or ignition wires can cause misfires, leading to rough running, poor acceleration, and shaking.
* Fuel System Issues: Clogged fuel injectors, a failing fuel pump, or a restricted fuel filter can prevent sufficient fuel delivery, resulting in poor performance and shaking.
* Air Intake Restriction: A clogged air filter can restrict airflow to the engine, reducing power and causing rough running.
* Engine Mounts: Worn engine mounts allow excessive engine movement, leading to vibrations felt throughout the car, especially during acceleration.
Drivetrain Related:
* Worn CV Joints (Front-Wheel Drive): Worn CV joints in a front-wheel-drive vehicle can cause vibrations and clicking noises, especially during acceleration.
* U-Joints (Rear-Wheel Drive): Similar to CV joints, worn U-joints in a rear-wheel-drive vehicle can cause vibrations and shaking, particularly during acceleration.
* Driveshaft Problems: Bent or damaged driveshafts can cause vibrations and poor performance.
Other Possibilities:
* Wheel Balance: Unbalanced wheels can cause shaking, especially at higher speeds, but might also be noticeable during acceleration.
* Tire Problems: Worn or damaged tires can also contribute to vibrations.
What to Do:
1. Check your fluids: Start by checking your transmission fluid level and condition. Also check your engine oil.
2. Listen carefully: Pay attention to any unusual noises accompanying the shaking (grinding, clicking, whining). This can help diagnose the problem.
3. Get it checked: Don't delay getting your car to a qualified mechanic. The longer you wait, the more extensive and costly the repairs may become. Describe the problem clearly to the mechanic, including when the shaking occurs (only during acceleration, at certain speeds, etc.).
Ignoring this problem could lead to significant damage and potentially dangerous driving conditions. Professional diagnosis is essential.
