Scion tC engine won't stay running with grinding sound and motor shaking on Scion tC

Submitted by Vehicle Owner · Jun 23, 2025
Published by RepairPal

Problem overview

Some Scion tC owners report experiencing issues with their engines not staying running while producing grinding sounds and shaking. These problems may stem from a loss of power or acceleration due to dirty air filters or clogged fuel injectors. Others have reported starter problems, which can manifest as noises or the engine failing to crank, often accompanied by a high-pitched whirring sound. Additionally, clutch failure is a common concern that can affect engine performance. While the Scion tC engine is generally reliable, owners have noted potential issues such as excessive oil consumption, water pump failure, and the check engine light activating. Furthermore, engine shaking may indicate misfires, often caused by faulty spark plugs or ignition coils. It is recommended that owners experiencing these symptoms consult a qualified mechanic for a thorough inspection and diagnosis.

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