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Why does car Car stutter when low on fuel?

When a car is low on fuel, it can begin to stutter or run erratically. This is because the fuel pump is no longer able to draw fuel from the tank and deliver it to the engine at a consistent rate. As a result, the engine may not receive enough fuel to operate smoothly, causing it to stutter or stall.

Additionally, when a car is low on fuel, the fuel lines may become clogged with debris or sediment. This can further restrict the flow of fuel to the engine, causing it to stutter or run erratically.

In some cases, a car may also stutter when it is low on fuel if the fuel tank is not properly vented. This can cause a vacuum to form in the tank, which can restrict the flow of fuel to the engine.