V8 mode

[denny noname]

The Bad thing on AFM not showing cylinder is sometimes the Range needs to be updated,  so you might have one out of date and not know it.

[ajs800]

On 1/10/2021 at 3:08 PM, flyingfool said:

what year vehicle?

 

for 10 and 8speeds trans, doesnt the DOD shut off when shifted into either 9th or 7th gear

 

I hear conflicting info on this.  I would purposely drive in L9 to see if it improved some of the shuttering/lugging and at times it seems improved but other times I notice no difference.  According the mechanic at my local GM dealer, L9 does not do away with the DFM 100% but I've read otherwise.  

[ajs800]

On 1/10/2021 at 3:08 PM, flyingfool said:

what year vehicle?

 

for 10 and 8speeds trans, doesnt the DOD shut off when shifted into either 9th or 7th gear

 

I hear conflicting info on this.  I would purposely drive in L9 to see if it improved some of the shuttering/lugging and at times it seems improved but other times I notice no difference.  According the mechanic at my local GM dealer, L9 does not do away with the DFM 100% like previous models but I've read otherwise.  

Edited October 28, 2021 by ajs800

[newdude]

19 minutes ago, ajs800 said:

 

I hear conflicting info on this.  I would purposely drive in L9 to see if it improved some of the shuttering/lugging and at times it seems improved but other times I notice no difference.  According the mechanic at my local GM dealer, L9 does not do away with the DFM 100% but I've read otherwise.  

 

 

L5 (6 speed) L7 (8 speed) and L9 (10 speed) still disable AFM/DFM.  

[mjm-1957]

It will also disable itself when a lifter fails and bends a pushrod.