4L80E overheating

By Joe2294
June 27, 2012 in Ask A GM Technician

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Joe2294

Posted June 27, 2012

I have a 2001 Silverado 2500HD, with a 6.0 and a 4l80e. I rebuilt the trans and now i have an overhating problem. i have replaced cooler, cooler lines, pump and boost valve. Oil flow through the cooler seems to be low. Any ideas?

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