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  1. Caboverbob

    68RFE death codes

    '17 2500 w/6.7 & 68rfe. Check engine light comes after hard shift under heavy right foot. Codes po729, 735 and 765 come up. After a couple of ignition cycles, everything is back to normal until it happens again. Spoke to ATS hoping that it would be a simple vb swap, but they're saying possible...
  2. Caboverbob

    '17 2500/68RFE diagnostic help request

    2017 2500 w/68RFE - symptoms - 1. Under hard acceleration it shifts very hard and check engine light comes on. 2. When towing 5th wheel trailer, trans hunts around in 4th & 5th when in foothill terrain. 3. On occasion, trans will not upshift past 4th gear. This condition goes away if I shut it...
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