Surge Moderate Acceleration

[mtocrs1]

They called and didn't get it figured out today....


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[mtocrs1]

They reflashed the tranny controller......


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[mtocrs1]

Still does it... Imagine that


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[LGSONE]

I'd be curious to see if a tune by Diablosport or BB would fix this. Good luck getting the dealer to do that but I did the DS Intune and it really addressed the throttle lag and other annoyance's. I'm sure at this point you just want it fixed but thought about what I noticed with the throttle when test driving. After the tune, the throttle is completely different. Just a thought outside of the "dealer" box.

LGSONE

 

[mtocrs1]

I'd be curious to see if a tune by Diablosport or BB would fix this. Good luck getting the dealer to do that but I did the DS Intune and it really addressed the throttle lag and other annoyance's. I'm sure at this point you just want it fixed but thought about what I noticed with the throttle when test driving. After the tune, the throttle is completely different. Just a thought outside of the "dealer" box.

LGSONE

I have been thinking about this as well. I have HP tuners and would be willing to pay for a tune. I think it's a combo of lazy throttle and torque management. But man sometimes it is severe.


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[Mikef]

GM engineer drove mine for over an hour with the laptop hooked up to it. Turns out it needs a transmission and a torque converter. Exactly what I told them from day one. It's now on order. Should be here in a week or two.

 

[Kpwweb]

It seems like at times the clutch apply pressure in the transmission is not high enough to take the torque so the clutches slip and shudder? Like they should be running a higher clutch apply pressure at lower rpms = higher psi... Also seems exacerbated at higher tranny temps (>170F). Might also be because of manufacturing tolerances and internal transmission leakage.

 

[Yukon John]

GM engineer drove mine for over an hour with the laptop hooked up to it. Turns out it needs a transmission and a torque converter. Exactly what I told them from day one. It's now on order. Should be here in a week or two.

It's great that you got that degree of service...restores my faith in the process !!

 

[mtocrs1]

GM engineer drove mine for over an hour with the laptop hooked up to it. Turns out it needs a transmission and a torque converter. Exactly what I told them from day one. It's now on order. Should be here in a week or two.

So they are fixing yours and not buying it back?


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[mtocrs1]

It seems like at times the clutch apply pressure in the transmission is not high enough to take the torque so the clutches slip and shudder? Like they should be running a higher clutch apply pressure at lower rpms = higher psi... Also seems exacerbated at higher tranny temps (>170F). Might also be because of manufacturing tolerances and internal transmission leakage.

So I take it you are having the same issue?


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