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11-04-2017, 05:03 PM | #1 |
Registered User
Join Date: Jun 2003
Location: ga
Posts: 630
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swap ? ecm
I bought a 2002 Tahoe with a 5.3 but also I had bought a 2007 1500 5.3 well I need to know if the 02 wiring harness and ecm will work on a 2007 ?
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11-04-2017, 06:52 PM | #2 |
meowMEOWmeowMEOW
Join Date: Sep 2009
Location: MKE WI
Posts: 7,128
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Re: swap ? ecm
02 = GenIII
07= GenIV Not the same.
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11-04-2017, 07:06 PM | #3 |
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Join Date: Jun 2003
Location: ga
Posts: 630
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Re: swap ? ecm
ok thanks
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11-04-2017, 08:22 PM | #4 |
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Join Date: Dec 2009
Location: Independence Mo
Posts: 4,119
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Re: swap ? ecm
Thats the case most of the time, but they made both engines in '07, so if its out of a Silverado Clasic or a van it will be a GEN 3 engine. You should be able to tell them apart since the crank sensor and knock sensors are in different spots on the 3 than the 4.
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My '72 short bed build. http://www.ls1tech.com/forums/conver...6-0-4l80e.html 5.3 swap into my RUSTY '71 C10 http://ls1tech.com/forums/conversion...71-c-10-a.html |
11-05-2017, 12:35 AM | #5 |
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Join Date: Apr 2013
Location: Nor-Cal
Posts: 632
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Re: swap ? ecm
you can usually tell the genIII from the genIV by the color of the crank position sensor if your engine is mostly apart. The genIII's should have a black crank position sensor where the genIV should be white or grey.
note: crank position sensor is hidden behind starter.
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