Damaged Turbo Chargers When Returned To The WPC - keywords 6.6 6.6l diesel engine LBZ leak LLY LMM noise oil P003A P0234 P2563 P2564 P2565 return turbocharger
| Subject: | Damaged Turbo Chargers When Returned to the WPC |
| Models: | 2004-2008 Chevrolet Express, Kodiak, Silverado |
| 2004-2008 GMC Savana, Sierra, Topkick |
| Equipped with the 6.6 Duramax Diesel Engine RPO codes LBZ LLY or LMM |
This PI was superseded to update modls and years. Please discard PIP3224.
The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.
Condition/Concern:
A dealer may have the need to replace a 6.6L Duramax Diesel Engine Turbocharger. All old Turbochargers will be returned to the Warranty Parts Center (WPC) for inspection. Old Turbos will be inspected by engineering for root cause failure.
Recommendation/Instructions:
The WPC has received Turbochargers from dealers that have either been disassembled, or poorly re-packaged causing shipping damage. If a Turbo is replaced, do not disassemble the turbo, and verify it is re-packaged correctly before returning it. Be sure to re-package the turbo in the original shipping container with the upper and lower packaging locators installed correctly.
Turbos returned to the WPC that have been disassembled, or damaged from incorrect shipping will be returned to the dealer.
Please follow this diagnostic or repair process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed.
