Quote Originally Posted by go5.3tt06 View Post
Okay, so far I been some research about 06 silverado. I decide ahead to test each coil pack, while somebody to turn each crank to see if its fire. It does fire each coil as well. It seem getting run each the coil. Must be fuel pump bad or crank sensor? I couldnt find crank sensor at? SO I crank up it run. I drive around a little bit then pull over and turn off and turn on it wont run. Id wait for few minutes and crank up again. It does run. I feel something seem not right.
Its not the crank sensor I don't think. The way it acts, its your pump. Put the fuel pressure gauge on the schrader valve on the fuel rail and test it while running, it should be 56-58. Anything lower, bad pump. Test it immediately after killing it, if it drops super quickly, something is wrong. It should hold PSI for at least 10 minutes. Let us know how that goes, and we can help you from there.