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Originally Posted by f5fstop
Dealer full of BS.
Let me ask, where your wheels turned? Were you going up or down? Did you get a code? At anytime, did any of your wheels leave the ground with the stabilitrack turned off (manually or via the system).
I actually met up with the head of programming yesterday for the H3, he was in our shop doing some test cals on some vehicles. I asked him about this condition, and also a condition I had in Moab a few weeks ago (4-Wheel drive failed). For mine, I just turned off the engine and restarted and the system worked ok, happened three times over five days.
He admits that sometimes, the computer just gets mixed up and a restart will usually set everything right again. That is one reason why the cals change. As much testing as GM can do, we as customers seem to be able to do things they never thought of or tested for. Therefore, as time goes on, they learn these problems and adjust the cal to solve the problem.
He is always working on new cals, and when the cal is finished they must not only be tested, they must be certified if it is an engine cal.
Not saying that is your problem, but I would love to find out what code was retained in the PCM.
As for the exhaust, I cannot imagine what could cause a new cat back exhaust to cause the condition you had.
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I was headed up hill. Display said reduced power or low power (cannot rememeber). Satabilitrack off/ stabilitrack failed- was in 4lo headed up hill. Engine was chugging and missifred until it died. The more gas you gave it, the harder it chugged and missfired. On the way back down this same hill, in the exact same spot (same elevation) it did the same thing and died.
Both times, I just shut the truck off and restarted. After 3 restarts, the engine light went back off and just flashed stabilitrack off. Was also still in 4lo.
The dealer is driving it home tomight to "reset codes". Not sure what 250 miles wouldn't have done already unless they have to clear the codes and than isolate codes again.
I also called another dealer and over the phone, giving them the codes and deffinitions, they are leaning towards a sensor having to do with air intake or "high altitude" computer uprgade. I athan asked them if this was the same thing as a ID10T upgrade. They didn't get it.
F5- what do you think I should do at this point. I will not let them take my exhaust off and charge me for it either.
