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'99 - '06 GM Truck Modifications
Tech Discussion
Transmission hot
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<blockquote data-quote="Chaingun427" data-source="post: 17048" data-attributes="member: 6394"><p>Looking for some direction with an error message in getting</p><p>Truck is an 04 tahoe</p><p>6.2 bored lq4</p><p>4l80e swapped ( guessing 2300-2500 stall, trans and converter were used)</p><p>Long tubes, baby summit cam, other minor mods</p><p>Derale 28k cooler</p><p>And cluster swapped from an 03 escalade</p><p></p><p>My issue lies somewhere between the transmission, pcm, and cluster, but I'm not sure exactly where.</p><p></p><p>Any time the trans temp exceeds 150 degrees, the cluster will randomly trigger a "transmission hot" message, even though scan data confirms the hottest reported temp to be 180 degrees. Transmission hot mode in the tune is set to 266 degrees, and no dtc or change in shift modes are present when the message pops up, and flow through the cooler is fine. </p><p></p><p>I'm unsure what parameters are causing the transmission hot message in the DIC without triggering the hot mode in the tune. </p><p>Could it be that the cluster came from a vehicle only ever equipped with a 4l60e/65e?</p><p>I do have info on how to download the cluster binary and edit it, though i haven't had time to do so yet.</p></blockquote><p></p>
[QUOTE="Chaingun427, post: 17048, member: 6394"] Looking for some direction with an error message in getting Truck is an 04 tahoe 6.2 bored lq4 4l80e swapped ( guessing 2300-2500 stall, trans and converter were used) Long tubes, baby summit cam, other minor mods Derale 28k cooler And cluster swapped from an 03 escalade My issue lies somewhere between the transmission, pcm, and cluster, but I'm not sure exactly where. Any time the trans temp exceeds 150 degrees, the cluster will randomly trigger a "transmission hot" message, even though scan data confirms the hottest reported temp to be 180 degrees. Transmission hot mode in the tune is set to 266 degrees, and no dtc or change in shift modes are present when the message pops up, and flow through the cooler is fine. I'm unsure what parameters are causing the transmission hot message in the DIC without triggering the hot mode in the tune. Could it be that the cluster came from a vehicle only ever equipped with a 4l60e/65e? I do have info on how to download the cluster binary and edit it, though i haven't had time to do so yet. [/QUOTE]
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'99 - '06 GM Truck Modifications
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Transmission hot
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