Any guess on what it could be?..

[draken]

Hey guys,
So I had some questions about my truck after i lifted it awhile ago. Right now as it sits i have a Zone 6" Suspension lift and bilsteins set at 1.4 i believe. 315/70/18 tires and a diablo hemi fever tune.
Before the lift the truck ran great, no noticeable issues at all.. Later on after the lift I notice some light vibrations? Doesn't happen all the time but it kind of feels like im going over small bumps repeadily.
Something weird that also happens is when i am going up a incline, before i put a little more throttle to boost up the RPMs, it kind of feels like some shuddering i guess is the right term.. Just creates a thumping kind of feeling.. now when i apply more throttle it becomes smooths again..
So my question is? Whats going on is there anyone out there with some suggestions or knowledge about this?

 

[xrsman]

Hey guys,
So I had some questions about my truck after i lifted it awhile ago. Right now as it sits i have a Zone 6" Suspension lift and bilsteins set at 1.4 i believe. 315/70/18 tires and a diablo hemi fever tune.
Before the lift the truck ran great, no noticeable issues at all.. Later on after the lift I notice some light vibrations? Doesn't happen all the time but it kind of feels like im going over small bumps repeadily.
Something weird that also happens is when i am going up a incline, before i put a little more throttle to boost up the RPMs, it kind of feels like some shuddering i guess is the right term.. Just creates a thumping kind of feeling.. now when i apply more throttle it becomes smooths again..
So my question is? Whats going on is there anyone out there with some suggestions or knowledge about this?

Have you tried to uninstall the tune to see if it does this with stock mapping?

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[draken]

I tried that for another problem i was having, havent for this yet though. Would that be a issue you think? hemifever tune coming from Sean

 

[Ratket]

the small vibrations could be a tire/ balancing issue.. the shutter at light throttle could just be the tranny/ engine loading up when it should just shift. if it is running related then they will be able to get it sorted out.

 

[cableguy_hd]

mine shutters going into 4th sometimes if the RPM's hang up a little and I'm stock tuned. maybe the added weight from the lift and tires is causing it. def. go back to stock and see what it does, or email HF and see if he can make some adjustments for it.

 

[draken]

Alright i will go back to stock and report back thanks guys!