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dme922 · 01-21-2018, 10:29 AM

Here is a little more info on my fan issue. The guy that i got my ecm from asked me what year my motor was and i told him an 04. I know not many if any 04 5.3 had electric fans but after initially having this issue i asked him if the ecm was programmed for electric fans and he said it was set to come on at 205 and off at 190. That being said a friend of mine hooked it up to a tech 2 computer and the ecm was getting the engine temp but was not grounding the trigger wires at the set temp. I contacted the guy that i got the ecm from and he sent me another ecm but i am having the same issue. Any suggestions?

01-21-2018, 10:29 AM	#8
dme922 Registered User Join Date: Mar 2012 Location: Gallipolis, Ohio Posts: 296	Re: Painless Harness fan trigger wires? Here is a little more info on my fan issue. The guy that i got my ecm from asked me what year my motor was and i told him an 04. I know not many if any 04 5.3 had electric fans but after initially having this issue i asked him if the ecm was programmed for electric fans and he said it was set to come on at 205 and off at 190. That being said a friend of mine hooked it up to a tech 2 computer and the ecm was getting the engine temp but was not grounding the trigger wires at the set temp. I contacted the guy that i got the ecm from and he sent me another ecm but i am having the same issue. Any suggestions?