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To change the fuel filter on a 1999 Mazda B4000, first, relieve the fuel system pressure by removing the fuel pump fuse and starting the engine until it stalls. Once the pressure is relieved, locate the fuel filter, typically found along the frame rail. Disconnect the fuel lines from the filter, then remove the mounting bolts to take out the old filter. Install the new filter in the same orientation, reattach the fuel lines, and replace the fuse before starting the engine to check for leaks.

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AnswerBot

2mo ago

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