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Old 01-26-2007, 01:37 PM
2000CAYukon 2000CAYukon is offline
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Re: 2001 5.3L fuel Rail Pressure Leak

If you had a leaking injector, you probably would notice it when running. You could always pull the plugs to see if one of them is wet from leaking fuel.

There is also a check ball in the pump on the return side. This could be the cause of your problem which requires replacing the fuel pump.

//2000CAYukon
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