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2006 - 2012 Corvette: Service Bulletin: #PI0773: Diagnostic Tips for DTC P0796, Slip or No 4th, 5th or 6th Gear - (Jul 25, 2012)

#PI0773: Diagnostic Tips for DTC P0796, Slip or No 4th, 5th or 6th Gear - (Jul 25, 2012)

Subject Diagnostic Tips for DTC P0796, Slip or No 4th, 5th or 6th Gear
Models 2006 - 2009 Cadillac STS-V, XLR, XLR-V
2007-2012 Cadillac Escalade Models
2009-2012 Cadillac CTS-V
2006 - 2012 Chevrolet Corvette
2007-2012 Chevrolet Silverado
2008-2012 Chevrolet Suburban
2009-2012 Chevrolet Avalanche, Tahoe
2010-2012 Chevrolet Camaro, Express
2007-2012 GMC Sierra, Sierra Denali, Yukon Denali, Yukon XL Denali
2008-2012 GMC GMC Yukon, Yukon XL
2010-2012 GMC Savana
2008-2009 HUMMER H2
2008-2009 Pontiac G8
Equipped with 6L80 or 6L90 Automatic Transmission (RPO MYC, MYD)

Condition/Concern

Some customers may comment on any of the following conditions:

  • MIL illuminated, DTC P0796 is found as an active or a history code in the TCM
  • Slip or no fourth gear
  • Slip or no fifth gear
  • Slip or no sixth gear
Recommendation/Instructions

If the 4-5-6 clutch is found to be distressed, be sure to disassemble and inspect the pump for possible damage.

Inspect for any of the following conditions:

  • Scored pump rotor or pump vanes
  • Scored pump cover or pump rotor pocket
  • Cracked pump slide

Failure to disassemble and inspect the pump may cause repeat distress to the 4-5-6 clutches.

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