2500 express ecm compatibility? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

ortega · 03-29-2011, 04:18 PM

Does any one know if the ecm out of a 2005 express 2500 van will work with any 2003 up 5.3? I'm gathering parts for my sawp and there's a ecm out of a van that I could get buti don't know if it will work.
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usmcchevy · 03-30-2011, 06:31 PM

I would call whoever you are going to have tune your computer just to be sure, but it should work. Vans got DBW in 04 so it should be the same as a 03-06 truck computer.

Shon · 03-31-2011, 08:53 AM

what he said plus you need to know what trans you are going to use and what harness you are going to use.

03-29-2011, 04:18 PM	#1
ortega Registered User Join Date: Aug 2007 Location: sun valley Posts: 98	2500 express ecm compatibility? Does any one know if the ecm out of a 2005 express 2500 van will work with any 2003 up 5.3? I'm gathering parts for my sawp and there's a ecm out of a van that I could get buti don't know if it will work. Posted via Mobile Device

03-30-2011, 06:31 PM	#2
usmcchevy Has more rust than truck... Join Date: Apr 2005 Location: Ivanhoe, MN Posts: 2,421	Re: 2500 express ecm compatibility? I would call whoever you are going to have tune your computer just to be sure, but it should work. Vans got DBW in 04 so it should be the same as a 03-06 truck computer. __________________ 1972 Custom/10 SWB, 4.8/4l80e Build thread LSx Swap FAQ index

03-31-2011, 08:53 AM	#3
Shon Registered User Join Date: Sep 2005 Location: sc Posts: 1,203	Re: 2500 express ecm compatibility? what he said plus you need to know what trans you are going to use and what harness you are going to use. __________________ 71 Cheyenne C10 LWB cam'd 6.0/T56 Swap

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