To replace the fuel filter on a 2001 GMC Sonoma, first, relieve the fuel system pressure by removing the fuel pump fuse and running the engine until it stalls. Next, locate the fuel filter, which is typically found along the frame rail. Disconnect the fuel lines from the filter using a fuel line disconnect tool, and then remove the filter from its bracket. Install the new filter in the same orientation, reconnect the fuel lines, and replace the fuel pump fuse before starting the engine to check for leaks.
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