Whole Car Shakes During Acceleration
The vehicle vibrates or shakes throughout the entire car when accelerating, which typically indicates a drivetrain or engine-related issue rather than a wheel or tire problem.
Diagnosis Details
Possible Causes
Worn or failing CV (constant velocity) axle shafts, especially on front-wheel-drive vehicles like the Altima, causing vibration under load.
Engine misfire due to faulty spark plugs, ignition coils, or fuel injectors, leading to uneven power delivery and shaking.
Motor or transmission mount failure, allowing excessive engine movement that transmits vibration to the chassis.
Torque converter or transmission issues (e.g., worn clutches or valve body problems) causing shudder during acceleration.
Related OBD-II Codes
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What You Should Do
Inspect CV axle boots for tears and check for play in the axles.
Have a professional scan for diagnostic trouble codes (DTCs) and perform a road test to isolate the vibration.
Check engine and transmission mounts for cracks or excessive movement.
If misfire is suspected, test spark plugs and ignition coils.
Related Repairs
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Disclaimer: This AI-generated diagnosis is for informational reference only. Always consult a qualified mechanic for an in-person inspection. AutOwner is not responsible for decisions made based on this information.
