2011 to 2008 5.7 engine swap?

2011 DODGE RAM
230,000 MILES • 5.7L • V8 • 4WD • AUTOMATIC
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CODYANDJACKIE
  • MEMBER
  • 2 POSTS
I have the truck listed above. I replaced the engine with a 2008 Ram 5.7. I have a 2009 wiring harness and a 2011 ECU. The ECU will let the truck crank over just will not fire and run I'm also missing a couple sensor connections due to not having the correct harness. What should I do?
Apr 29, 2023 at 10:28 AM
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JACOBANDNICKOLAS
  • ✓Experienced Mechanic
  • 110,248 POSTS
Hi,

Is there a reason you didn't reuse the 2011 harness? That is what needs to be done. Let me know. Also, let me know what sensor connections are missing.

Let me know.

Joe
Apr 29, 2023 at 1:13 PM
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