I have a 2004 burban 5.3L 4x4 Z71. It will just cut off and I have to pull to the side of the road and restart it. It will restart in a few minutes and go for about 20 miles then cut off again. There is plenty of fuel in the tank. If it were the fuel pump, wouldn't it just quit and not work again? If it were the ignition, wouldn't it be out of timing and not correct itself? It did not throw a CEL the first time, but now it does. How do you pull the codes for the CEL? It just seems like a fuel starving issue. I will shoot some carb/FI cleaner in the intake plenum to test the ignition to make sure it fires then to rule out the electrical problem and narrow it down to fuel. Will let you know on that?
Does anyone know of a good chevy forum? I went to chevroletforum.com. any others or better ones?
Thanks for any pointers.
Osiris