snowsdog
04-12-2005, 11:14 AM
I posted this in the LLY section also to get replies from the other owners that have had this problem, I post it here to get the tecs expert opinion.
I have had my truck in for the third time for the 900 to 1300 rpm surge and buck problem (my04.5LLY) The dealer reflashed it the first time and the again the second time. Now they tell me it has the latest updates but the problem is still there. Says GM is aware and will notify me when they have a fix. I am making an appointment with a different dealer to see if someone else has any better luck.
The service MGR said to me its not that noticable, I replied that driving the truck by itself its not that noticable, but hook on my 10K plus fifthwheel and it feels like it is going to break somthing.
How many of you have experiened this problem and the reflash did not cure it?
I also had them install the dampeners on the exhaust for the drone noise and that didn't help it either.
I have had my truck in for the third time for the 900 to 1300 rpm surge and buck problem (my04.5LLY) The dealer reflashed it the first time and the again the second time. Now they tell me it has the latest updates but the problem is still there. Says GM is aware and will notify me when they have a fix. I am making an appointment with a different dealer to see if someone else has any better luck.
The service MGR said to me its not that noticable, I replied that driving the truck by itself its not that noticable, but hook on my 10K plus fifthwheel and it feels like it is going to break somthing.
How many of you have experiened this problem and the reflash did not cure it?
I also had them install the dampeners on the exhaust for the drone noise and that didn't help it either.