Can someone help explain how the AFM on my Sierra pick up (the V6, not the V8) can be affected by going up hills. Most aren't extremely steep, but gradual inclines. The truck seems to lag once it starts to begin the incline before it slowly starts to built up momentum. I can be doing 65-70 mph on level ground and start going up a not so steep hill and the lagging/down shifting becomes noticable. Going from 4 cylinders to six? Not sure if its the transmission shifting to a lower gear, or maybe the AFM functioning. I honestly don't know. I was researching the Range Technology AFM disabler and was wondering if this might be a solution by giving me all six cylinders all the time? I'm not sure I explained or described it very well so please ask for clarifications if you need.
I've had smaller six cylinder engines with less hp that didn't act like this. Just a little frustrating. Thanks.
I've had smaller six cylinder engines with less hp that didn't act like this. Just a little frustrating. Thanks.
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