That rough idling, hesitation and misfires may be caused by a faulty fuel pump. Its main job is to relay gas from the tank to the injectors or carburetor at a specific volume and pressure. A bad pump causes your car to stall altogether. Purchase a replacement pump for Cadillac if you experience any of these issues.
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The fuel pump is responsible for delivering adequate gas to the engine at correct volumes and pressures. Low fuel causes misfiring, hesitation and stalling. Your engine stops running completely if the fuel pump stops working. Fuel injected engines are especially sensitive to fuel pressure. Fuel systems require anywhere between 30 and 80 psi to start and run. It's possible to check pressure using a gauge once you know what psi your vehicle requires. Cadillac fuel pumps and gauges come with a 1-Year, Lower Price Guarantee when you shop the quality selection at AutoAnything.