fuel pressure regulator
 

How hard is it to change the fuel pressure regulator on a 98 gmc sierra 5.7 L. Any help or directions would be greatly appreciated.

Pretty easy. Look on the fuel line for the regulator. There is a clip that holds it in place. Some are pull clips and others are C clips that you have to use needle nose tools to take off. Once you take it out, it should pop out or you may have to wiggle a little. Before you do anything, relase the pressure form the system. There should be a valve stem on the fuel line. Looks like a place to put air for a tire. Stick a phillips screwdriver in there with a rag over it cuz it will shoot out for a second. After that then your home free.

Thanks for the reply, still not certain of the exact location.

Mine is on the sending unit in the tank. I replaced the whole sending unit, it comes with it.