I have a unique problem on my 2007 Tahoe with a Z71 package and 200 000miles

[jp.maritz]

Well since about 195 000 miles the Tahoe started to have this vibration when coming to a stop or cruising around 20-40mph. Had the tranny services done always with full synthetic oil like the motor and rear end too. I have had the brakes redone rotors new too brake fluid flush... Drive shaft was checked... But still this vibration. Other than that it runs great...
Anybody have a thought on what this could be


Sent from my iPhone using Tapatalk

 

[scribble]

Do you feel it in the floor, seat or steering wheel?

 

[08grey]

Motor mount.

 

[jp.maritz]

Ok thanks for the input... I replaced the motor mounts before... Why does these trucks brake engine mounts


Sent from my iPhone using Tapatalk

---------- Post added at 02:59 PM ---------- Previous post was at 02:51 PM ----------

I do feel it through the seats and floor


Sent from my iPhone using Tapatalk

 

[AZSCTACO]

Ok thanks for the input... I replaced the motor mounts before... Why does these trucks brake engine mounts


Sent from my iPhone using Tapatalk

---------- Post added at 02:59 PM ---------- Previous post was at 02:51 PM ----------

I do feel it through the seats and floor


Sent from my iPhone using Tapatalk

Vibration/shakes through the steering wheel is going to from the front (most likely tires) Shake/vibration in the seats/floor is from the rear. Have you had the tires checked in the rear? Out of balance? Tread separation? I just had 3 out of 4 of my tires have tread separation. Sometimes it's hard to visual see. If they put them on a road force balancing machine, they'll be able to tell. Just some suggestions.

 

[jp.maritz]

I just installed 4 brand new tires, brakes are new and tomorrow 2 new motor mounts since the right side took a shit... But as of tonight it still has the vibration


Sent from my iPhone using Tapatalk

 

[scribble]

Still have the tires road forced balanced. It is another step over a normal balance. My 20" all balance fine but 3 have excessive road force variance that will not cole down without new rims.


Sent from my iPhone using Tapatalk

 

[StockHoe]

Well since about 195 000 miles the Tahoe started to have this vibration when coming to a stop or cruising around 20-40mph. Had the tranny services done always with full synthetic oil like the motor and rear end too. I have had the brakes redone rotors new too brake fluid flush... Drive shaft was checked... But still this vibration. Other than that it runs great...
Anybody have a thought on what this could be


Sent from my iPhone using Tapatalk

Press the button on the dash so you can see when your Tahoe is in V4 or V8 mode. If you notice that it vibrates in V4 mode, it is most likely the AFM. I had the same problem in my 07 and it went away after I disabled the AFM. I now have full time V8 and no more shutter.

 

[jp.maritz]

How do you disable the afm


Sent from my iPhone using Tapatalk

 

[StockHoe]

How do you disable the afm


Sent from my iPhone using Tapatalk

You can do a full engine re-build, get a Black bear tune, or do like me and install the "range" device.