Duramaster
03-15-2009, 20:05
We have had a few trucks in the shop recently with runability issues which are directly related to the injectors BUT the actual symptoms do not match the Special Policy 04039 guidelines. The first paragraph states:
Some customers of 2001-04 model year Chevrolet Silverado; GMC Sierra; 2003-04 Chevrolet Kodiak and GMC TopKick vehicles, equipped with a 6.6L Duramax Diesel (RPO LB7 - VIN Code 1) engine, may experience vehicle service engine soon (SES) light illumination, low engine power, hard start, and/or fuel in crankcase, requiring injector replacement, as a result of high fuel return rates due to fuel injector body cracks, ball seat erosion, or high pressure seal extrusion (refer to Corporate Bulletin Number 04-06-04-007G and SI).
So, I have had two trucks in the shop for smoke (not covered). From what I have seen, even though the engine smokes the injectors can still be within specifications. I think there was a post in the past week from REDBIRD? that had smoke and then the engine detonated and his dealer is doing nothing for him (last I read anyway). Maintenance records also helps when trying to fight for warranty coverage on the DMAX engine. GM tech assist even wanted to know if the customer was using an actual GM fuel filter P/N TP 1298B. So if you have a smoker and it doesn't look like it is covered by the guidelines in the special policy you still might be able to get coverage if you read the above paragraph carefully and use your imagination. But you didn't hear this (or read this) from me :rolleyes:
On another note. We have also denied a warranty repair because of YOUR FRIEND Mr. BANKS!!! A customer had a turbo failure on his LLY C-4500. GM denied warranty for the repair because of the Banks system. And to go a little further, I took a GM Emerging Issue class this last week which was about the GM Warranty Parts Center. Anyway, the big thing I got out of that is that if a vehicle comes in for warranty service with non GM approved calibrations, the the warranty will be voided on the entire power train (engine, trans, transfer case, axles, drivelines).
Please be carefull and maybe even think twice about adding aftermarket power up devices on your DMAX trucks.
Happy Trucking!!!
Some customers of 2001-04 model year Chevrolet Silverado; GMC Sierra; 2003-04 Chevrolet Kodiak and GMC TopKick vehicles, equipped with a 6.6L Duramax Diesel (RPO LB7 - VIN Code 1) engine, may experience vehicle service engine soon (SES) light illumination, low engine power, hard start, and/or fuel in crankcase, requiring injector replacement, as a result of high fuel return rates due to fuel injector body cracks, ball seat erosion, or high pressure seal extrusion (refer to Corporate Bulletin Number 04-06-04-007G and SI).
So, I have had two trucks in the shop for smoke (not covered). From what I have seen, even though the engine smokes the injectors can still be within specifications. I think there was a post in the past week from REDBIRD? that had smoke and then the engine detonated and his dealer is doing nothing for him (last I read anyway). Maintenance records also helps when trying to fight for warranty coverage on the DMAX engine. GM tech assist even wanted to know if the customer was using an actual GM fuel filter P/N TP 1298B. So if you have a smoker and it doesn't look like it is covered by the guidelines in the special policy you still might be able to get coverage if you read the above paragraph carefully and use your imagination. But you didn't hear this (or read this) from me :rolleyes:
On another note. We have also denied a warranty repair because of YOUR FRIEND Mr. BANKS!!! A customer had a turbo failure on his LLY C-4500. GM denied warranty for the repair because of the Banks system. And to go a little further, I took a GM Emerging Issue class this last week which was about the GM Warranty Parts Center. Anyway, the big thing I got out of that is that if a vehicle comes in for warranty service with non GM approved calibrations, the the warranty will be voided on the entire power train (engine, trans, transfer case, axles, drivelines).
Please be carefull and maybe even think twice about adding aftermarket power up devices on your DMAX trucks.
Happy Trucking!!!