Slight Engine Vibration

[5LTREATR]

I have noticed that after i tuned my truck with EFI Live i have a Engine Vibration that i can feel in the brake pedal when I am stopped has anybody else ever experienced this. Also if i get out and let it idle and pop the hood if I place my hand at the top of the engine i can also feel it. How do i know if an injector is acting up or if a cylinder is shut off. Or maybe more vibration is normal when yo add 150 extra hp to an engine.

 

[The Neens]

Load the stock tune and see if it still does it...That will tell you whether it's the tune or something else...

 

[5LTREATR]

That isn't that easy for me to do the guy that tuned my truck is an hour drive from me. he says that some vibration is normal but it is hard to explain he said.

 

[5LTREATR]

I just hate to drive back out there something serious would through a check engine light would it not.

 

[The Neens]

If it happened immediately after changing the tune, I'd say something is wrong with the tune...If it happened around the same time as your modded tune, I'd look elsewhere...Maybe the power steering pump or hydro boost, if you can feel it through the brake pedal...

 

[tomc983]

just wondering if you ever found the cause for the vibration. i have a similar vibration but have stock truck and i feel it a low rpms

 

[x MadMAX DIESEL]

I bet yalls idle was lowered and is causing it.

 

[hondarider552]

Lowered idle (atleast on my truck) is smoother than 680 oem

 

[x MadMAX DIESEL]

Not on mine

 

[tomc983]

how would it lower itself?

 

[x MadMAX DIESEL]

It can't I'm sorry, I read the first post and saw it was just tuned with EFI Live and assumed you had it too

 

[JoshH]

Is it a constant vibration, or is it a kind of rolling/pulsing vibration where the intensity changes at a steady rhythm?

 

[tomc983]

it is consistant until i get into the higher rpms then gos away i just did all new exhaust isolators and no change still stumped. i feel it throught the steering wheel, brake pedel
and the floor on drivers side no where else in the truck

 

[dmaxfireman]

my bet is there is added fuel in the low rpm and low throttle sections of some tables. whether it is pressure or pw etc i don't know without looking. if you are not 100% happy with it let him know.

 

[S Phinney]

It possibly could be a motor mount or the intermediate steering shaft. Those kinda things cause similar vibrations to what your explaining. I would still return to stock to see if its in the tuning first.

 

[tomc983]

what would give it more fuel i havent messed with anything tunning related