My transmission is shuddering when shifting

RUSTY_GRIT

MEMBER
2005 GMC YUKON
V8
2WD
AUTOMATIC
80,000 MILES

I have a 2005 Yukon XL SLE with 80000 miles. 5.3 L V-8. I am experiencing a shudder anywhere between 45-60 MPH. This happens when I am getting at my cruising speed and seems like it is trying to shift into OD but feels like it is going in/out of OD. Transmission was repaired but still having same issue. Additionally, we checked all wheels for proper balance and warping. What can possibly be causing this issue?

Saturday, January 1st, 2011 AT 9:33 PM

5 Replies

JACOBANDNICKOLAS

MECHANIC
110,176 POSTS

Is the transmission actually going into OD? What was done to "repair" it?

Was this

answer

helpful?

Yes

Saturday, January 1st, 2011 AT 11:52 PM

RUSTY_GRIT

MEMBER
3 POSTS

The transmission does shift into OD after I push through 60. If I stay in the 50-55 mph range, it shudders and shifts in and out of OD. If I accelerate to 65+, of go down to 45 or below it stops. Additionally, it happens when going uphill more often than when traveling on flat terrain. Transmission was serviced (oil and filter) and replaced u-joints.

Was this

answer

helpful?

Yes

-1

Sunday, January 2nd, 2011 AT 12:09 AM

JACOBANDNICKOLAS

MECHANIC
110,176 POSTS

To me it sounds like a bad TCC solenoids that locks the converter up for overdrive. That is where I would start. Also, you mentioned you had it in or repair. What was done to it?

Was this

answer

helpful?

Yes

-1

Sunday, January 2nd, 2011 AT 12:18 AM

RUSTY_GRIT