Beth
08-28-2005, 04:14
Sorry if this has been covered, I tried to do some searching but I have dial-up and it is a nightmare because it is so slow.
Husband has a '04 Silverado Duramax, pretty sure it's the LB7. Has about 18,000 miles. We did have it to a dealer a few weeks back because we thought it had a new, extra noise (knock/tick, etc.) at about 1800-2000 RPM's, especially while towing our 27' camper. Dealer gave us the TSB and said it was normal. To be honest, I don't even think they looked at anything, just took it for a drive.
So yesterday, we are on the interstate, travelling at a steady speed of ~65 MPH, not towing anything, and the engine makes a sound like it is missing, or a few seconds of a louder knock, and then a huge cloud of white smoke behind us. We thought it was all over and we would be stuck on the side of the road. But it cleared up and it ran fine, we made it the few miles home. No loss of power. Although I do think it may have still been smoking a very tiny bit, it was hard to tell. Nothing really obvious.
I will be calling (a different) dealer tomorrow morning, but I like to be prepared. Does it sound like the injectors? If so, will they replace all of them, or do I have to fight to have that done? If I do need to push for it, what is the best way to go about it? Call GM, etc? How long does injector replacement take?
Thank you for any help you can give me. I appreciate it.
Beth
Edited to add: Is there a way they can actually test the injectors to see if they are bad?
[ 08-28-2005, 05:30 AM: Message edited by: Beth ]
Husband has a '04 Silverado Duramax, pretty sure it's the LB7. Has about 18,000 miles. We did have it to a dealer a few weeks back because we thought it had a new, extra noise (knock/tick, etc.) at about 1800-2000 RPM's, especially while towing our 27' camper. Dealer gave us the TSB and said it was normal. To be honest, I don't even think they looked at anything, just took it for a drive.
So yesterday, we are on the interstate, travelling at a steady speed of ~65 MPH, not towing anything, and the engine makes a sound like it is missing, or a few seconds of a louder knock, and then a huge cloud of white smoke behind us. We thought it was all over and we would be stuck on the side of the road. But it cleared up and it ran fine, we made it the few miles home. No loss of power. Although I do think it may have still been smoking a very tiny bit, it was hard to tell. Nothing really obvious.
I will be calling (a different) dealer tomorrow morning, but I like to be prepared. Does it sound like the injectors? If so, will they replace all of them, or do I have to fight to have that done? If I do need to push for it, what is the best way to go about it? Call GM, etc? How long does injector replacement take?
Thank you for any help you can give me. I appreciate it.
Beth
Edited to add: Is there a way they can actually test the injectors to see if they are bad?
[ 08-28-2005, 05:30 AM: Message edited by: Beth ]