Why does my car judder when accelerating?

A judder or shudder when accelerating — especially from a standstill — is often clutch-related (clutch judder) or caused by worn engine or gearbox mounts. On automatic vehicles, transmission shudder during acceleration can indicate low or degraded transmission fluid or a failing torque converter. A sharp, jerky judder on pulling away in cold weather that smooths out when warm often points to a worn engine mount.

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Likely causes

Likely

Worn or contaminated clutch (clutch judder)

Judder specifically when pulling away from rest — clutch engages unevenly

Likely

Worn engine or gearbox mount

Clunk or judder when accelerating from rest — engine rocks on worn rubber mount

Possible

CV joint wear

Judder under load during acceleration — worn inner CV joint is common

Possible

Automatic transmission shudder

Torque converter or degraded transmission fluid on automatic gearboxes

Repairs you may need

Typical cost range: £100–£700Engine/gearbox mount: £150–350. CV joint: £180–400. Clutch: £500–1,100.

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Related questions

This information is a general guide based on common causes of this symptom. Symptoms can have multiple causes and accurate diagnosis requires physical inspection by a qualified mechanic. Always consult a professional before deciding not to repair.