GMT 800 & Older GM General Discussion 2006 & Older Trucks | General Discussion

6.0 4l80e swap won't start

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Old Mar 20, 2009 | 06:20 PM
  #11  
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okay, i redid all of the grounds and sanded the block down for a good connection.
replaced the crank sensor with the one from the block i just took out.
and still nothin it cranks but no boom!
would swappin the injectors help any?
when i pulled a plug the seemed wet with fuel but i'm thinkin the injectors could be clogged because the engine has been sitting for about 2.5 years.
any other comments?
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Old Mar 21, 2009 | 01:28 AM
  #12  
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alright thanks for the help guys.
I changed the cam sensor and the fuel injectors and it started right up. The fuel injector were just clogged up with old fuel.
It runs good and no codes, just an exhaust leak that comes and goes. The taller first of the 4l80 keeps it from burning out much but it will chirp the 1-2 shift at about 55 MPH.
its a big difference going from a stock truck to a tuned 6.0 4l80 with headers.
And thanks again wheatley the tune feels great i'm sure i'll be getting a retune from you soon since i caught the contagious mod bug!
guess i have to change the sig now
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Old Mar 21, 2009 | 12:19 PM
  #13  
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Great to hear you got it Brent.Enjoy
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Old Mar 22, 2009 | 03:52 PM
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Originally Posted by brent5631
alright thanks for the help guys.
I changed the cam sensor and the fuel injectors and it started right up. The fuel injector were just clogged up with old fuel.
It runs good and no codes, just an exhaust leak that comes and goes. The taller first of the 4l80 keeps it from burning out much but it will chirp the 1-2 shift at about 55 MPH.
its a big difference going from a stock truck to a tuned 6.0 4l80 with headers.
And thanks again wheatley the tune feels great i'm sure i'll be getting a retune from you soon since i caught the contagious mod bug!
guess i have to change the sig now
haha, glad you got it man!!
i love the 80E..
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