Fuel shut off

[shawn.towne.359]

97 suburban was going down highway and everything died as if you hit the key. Change crank sensor, oli pressure, ignition mod. Got spark got fuel pressure but no fuel to intake. Will run with starting fluid. Out of ideas

[Jeff Higgins]

Your fuel pressure regulator is most likely bad. hook a pressure gauge up to the pressure relief valve and measure the pressure with the key in the on position but don't crank it then see how fast the pressure drops. A good regulator should hold the pressure for about 10 min then slowly drop off. If it drops immediately it's a bad regulator.

[shawn.towne.359]

It held fine. Trying a cam sensor now