TROUBLESHOOTING THE HMMWV - OD1616 - LESSON 1/PE 1
To check for evidence of a seized engine, use a socket and a
breaker bar at the crankshaft pulley.
Ensure that manual clockwise
rotation of the engine is possible.
If after troubleshooting this malfunction the cause of the
malfunction has still not been determined, notify intermediate
support (IDS/IGS) maintenance.
The engine oil pressure, with the engine running at idle, should
be 6-15 psi.