Q: How to replace a fuel filter for Chevrolet Blazer,S10,GM Jimmy and Sonoma?
A: Relieve the fuel system pressure. Raise the vehicle and support it securely on jackstands. Place a container, newspapers or rags under the fuel filter. Use two wrenches, one to steady the filter and the other to unscrew the fuel line nut, then separate the connections. Use two wrenches to loosen the fuel lines and detach if from the filter. If available, use a flare nut wrench on the fuel line nut fitting. On 1997 and later models one end of the fuel filter has a quick disconnect fitting-to remove the line squeeze the plastic clips on the fitting together and pull back on the line. It's a good idea to use a flarenut wrench because the wrap-around design gives it a better grip on the fuel line nut. Detach the filter from the bracket. Install the new filter and connect the fuel lines securely.