I have a 99 gmc yukon that quit running on me on my way to work last week. I accelerated at a stop light and less than 1/4 mile down the road it sounded like it coughed. i thought it might have been the fuel pump. ive changed the fuel pump with a napa fuel pump, ive also changed plugs, wires,cap, rotor, and crank sensor. it acts like it wants to turn over and sounds better than what it did when i try to turn it over but it still wont start and suggestions?

SOURCE: my 2003 gmc yukon wont start

fuel pump is bad change unit

SOURCE: 1995 GMC Sierra

check you ideler sensor i had the same problem on

SOURCE: GMC JIMMY NO START BUT GOT SPARK AND FUEL

try the oil pressure switch, that was a common problem on Gm trucks when I used to work on them, the oils switch was bad and woulden't allow it to start and the ones I worked on were on the back of the distributor.

SOURCE: 96 gmc sierra hard to crank after 12-14 hours

that has a votec engine in it the fuel pressure is droping at knight and it takes 60 psi before the injectors will fire most likely cause fuel pump ,leaking injector ,or a feul pressure regulator

SOURCE: i have 1998 sierra 1500 vortec 5.0 liters,when

Camshaft To Crankshaft Position Correlation Fault is what p1345 means. if the problem isnt electrical I would imagine the timing chain could be stretched and the engine is out of time somehow