ANSWERS: 3
  • What code is it flashing? There are 3 codes that will cause engine shutdown... 43 low coolant 44 high oil or coolant temp 45 low oil pressure.
  • If you are new to this truck, the idle shutdown may be set to a low value but unlikely, you need to flash the codes out, if sensors were all replaced, its most likely a wiring issue to or from sensor to ecm.
  • Ended up being the ECM itself. COOLANT level was checked DAILY!!! Sensor was replaced. Oil Sensor was replaced. Had no other choice but to send it to a shop and they found that the ECM was bad.

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