formula271
TYF Newbie
- Joined
- Nov 25, 2017
- Posts
- 17
- Reaction score
- 9
Would my 2015 Suburban 5.3 benefit from a tune? It is an LTZ with the Max Trailering Package 3.42 gears.
Currently have ~35,000 miles. My only "performance" goodies are a Range AFM disabler and an almost exclusive use of premium fuel. Normally, I'd be suspicious of the benefit of running premium fuel in a vehicle that recommends 87....but there's gotta be something positive going on with the 93. The throttle response and feeling of more immediate torque, even at lower RPM's, is meaningful. When I am a bit more aggressive with the throttle, I'd swear the 93 yields stronger acceleration more effortlessly, and seems even to produce a bit more pleasant exhaust note.
The transmission tuning is frustrating, to say the least. Small increases in throttle seem to illicit upshifts at the most inopportune times. In general, the eagerness to get into the highest gear possible seems crazy. More recently, I drove a 2017 Tahoe LT with the 5.3, same 20" wheels/tires, and 6A...it had the 3.08 gears. Not sure what changes Chevy has made since 2015, but even this 2017 seemed infinitely more drivable. I know others still complain of 2017 issues, but the throttle response was worlds better than my 2015. I asked the dealership if an "update" was available to my 2015 that might make it more like the 2017....they looked at me like I was crazy.
I'm not a fan of just using the "trailering mode"...I think this yields unnecessary harshness for normal driving.
So, would a tune remedy my transmission shifting woes? From an engine performance standpoint, could I expect any HP/torque benefit? Mostly, I'm interested in increased drivability at light to moderate throttle, but it would be fun to know, too, that there is some benefit with a tune when I step on it.
Currently have ~35,000 miles. My only "performance" goodies are a Range AFM disabler and an almost exclusive use of premium fuel. Normally, I'd be suspicious of the benefit of running premium fuel in a vehicle that recommends 87....but there's gotta be something positive going on with the 93. The throttle response and feeling of more immediate torque, even at lower RPM's, is meaningful. When I am a bit more aggressive with the throttle, I'd swear the 93 yields stronger acceleration more effortlessly, and seems even to produce a bit more pleasant exhaust note.
The transmission tuning is frustrating, to say the least. Small increases in throttle seem to illicit upshifts at the most inopportune times. In general, the eagerness to get into the highest gear possible seems crazy. More recently, I drove a 2017 Tahoe LT with the 5.3, same 20" wheels/tires, and 6A...it had the 3.08 gears. Not sure what changes Chevy has made since 2015, but even this 2017 seemed infinitely more drivable. I know others still complain of 2017 issues, but the throttle response was worlds better than my 2015. I asked the dealership if an "update" was available to my 2015 that might make it more like the 2017....they looked at me like I was crazy.
I'm not a fan of just using the "trailering mode"...I think this yields unnecessary harshness for normal driving.
So, would a tune remedy my transmission shifting woes? From an engine performance standpoint, could I expect any HP/torque benefit? Mostly, I'm interested in increased drivability at light to moderate throttle, but it would be fun to know, too, that there is some benefit with a tune when I step on it.
