Discuss! cylinder deactivation & GM's "skip shift" system

[7milesout]

That may have been the dumbest feature GM has created.

[Mark]

That may have been the dumbest feature GM has created.

It would surely give cylinder deactivation some competition for stupid GM engineering.

I hate GM vehicles that have the auto stop & go feature that can't be turned off easily, too!

Most brands have lost my respect in the auto industry. On a positive note - If someone buys a new vehicle these days, I no longer suffer from any new vehicle envy!

[AtomicPunk]

It would surely give cylinder deactivation some competition for stupid GM engineering.

I hate GM vehicles that have the auto stop & go feature that can't be turned off easily, too!

I actually think cylinder deactivation makes good sense in having the displacement available, but only using what you need situationaly. I was surprised to learn GM didn't invent it, and it dates back as far as1905.

Total agreement with you on start/stop tech, though. That is an obtrusive tech for trying to meet overly stringent CAFE requirements

[Mark]

I actually think cylinder deactivation makes good sense in having the displacement available, but only using what you need situationaly. I was surprised to learn GM didn't invent it, and it dates back as far as1905.

Total agreement with you on start/stop tech, though. That is an obtrusive tech for trying to meet overly stringent CAFE requirements

I have a number of relatives that drive larger GM vehicles, & cylinder deactivation has caused engine failure for a few. You have hot active cylinders running next to cooler deactivated cylinders and that just causes havoc within. In theory it sounds great. If it means early engine failure, that sucks!

[CROSSBOLT]

That may have been the dumbest feature GM has created.

Not in my opinion! At least a match with the 2-4-6-8 scheme for some V8's. How bout 2 different keys for the same car?