We had the engine on our 2007 H2 rebuilt at a local machine shop. Replaced all the sensors and throttle body, plugs, wires and coils but the engine won’t start. The truck ran fine with 178,000 miles so we preemptively rebuild the engine, transmission and transfer case. The engine cranks and it sounds like it wants to start and one time did but ran really rough. Any ideas on what we are missing?

 

Verify all your sensors are connected, Check for fuel pressure, perform the crank sensor relearn procedure.