2000 gmc yukon 5.3l---ok so after doing some research i found what i think is the fuel pressure regulator.i believe its located on the fuel rail on the drivers side and is very easy to access. what i wanna know is how hard is it to replace it? i saw a vid and the only thing i think ill have to do is get a set of snap ring pliers, is this true or can i use something else? also my neighbor had his replaced and he said it got rid of his hard starting, rough idling, and those annoying abs/e-brake lights that come on everytime. has anyone else had experience with this, thanks.