TM   10-3930-643-20 ENGINE, FUEL, EXHAUST AND COOLING TROUBLESHOOTING AND MAINTENANCE. 4-2. Engine   STE/ICE   Tests. b . TEST  12  -   ENGINE POWER (S/N 2001 AND ABOVE ONLY). 1. 2. 3. 4. 5. 6. Refer   to   VTM-General   Setup   and   Checkout   Instructions   in   TM   9-4910- 571-12&P. Connect   power   cables   to   battery,   as   shown   in   paragraph   4-2a. Remove   cap   from   tachometer   drive. Install   pulse   tachometer,   as   shown. Perform   test   using   procedure   Test   12 TBD. Connect   cable. as   instructed   in   TM   9-4910-571-12&P. Return   vehicle   to   its   original   condition. 4-7