What causes rough idling and hesitation in the Toyota Prius engine?

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What causes rough idling and hesitation in the Toyota Prius engine?

Issues such as dirty fuel injectors, clogged throttle body, o r failing ignition coils can cause rough idling. Discussing troubleshooting steps and preventive maintenance can help ensure smooth performance.

Zarnish asked on 12 Feb 2025 16:33:15 pm

1 Answer

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Car Mechanic Expert - on 12 Feb 2025 16:38:52 pm

Common causes include:

Dirty o r clogged fuel injectors: These can cause uneven fuel distribution, leading to rough idling.
Clogged throttle body: Impairs air intake and leads to poor engine response.
Failing ignition coils o r spark plugs: Cause misfires and hesitation when accelerating.

Regularly cleaning o r replacing fuel injectors, throttle body, and spark plugs can resolve these issues.