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What are the reasons for a gear pump failing to build up pressure?

1 Answers

VonEvangeline

07/30/25 8:37am

Gear pump failing to build up pressure is caused by wear during use. The following are symptoms of a damaged oil pump: Lack of power during acceleration: Jerking occurs when accelerating hard. Difficulty starting: Hard to start, requiring prolonged key turning. Abnormal noise: A buzzing sound while driving. Warning light on: The engine warning light is illuminated. Vibration: The engine exhibits vibration. Engine oil serves the functions of lubrication, cleaning, sealing, buffering, rust prevention, and heat dissipation in the engine. Below is extended information on the role of the oil pump: Lubrication: Delivers oil to various friction points in the engine, circulating oil through the lubrication circuit to ensure proper engine lubrication. Oil pump: The oil pump consists of a gear pump and gear pump housing. When the engine is running, the camshaft drives the rotation of the pump's driving gear.

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