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Hi All, noob to this forum, and I have a BIG Tahoe Problems

2293 Views 9 Replies 9 Participants Last post by  SPXTrader
I've owned my 96 Tahoe since late 97. 4X4, 4 door, 90,000 miles, 4" SuperLift, BFG 33X10.5 AT tires. On a trip last weekend, the thing started vibrating like mad. Here's a quick list:

up to 59 MPH OK
60 to 69 MPH BAD vibration. Things are blurry in the rear view mirror. A sound and feel like you're driving on the rumble strips on the side of the interstate.
70 and above Slight vibration.

Since it was a long drive, I had time to mess with speed/RPM. In the 60 to 69 MPH range, slight pressure on the gas seemed to lower it a bit, but it was still bad. Going downhill, at the same speeds, off the gas 100% and once the tach dropped below about 1700, it stopped. Smooth as silk.

This happened all of a sudden. Three weeks ago and another long drive, no problems. I've checked the u-joints and they are tight. No drive shaft play. This happens in OD or when it down shifts for a uphill pull.

Has anyone experienced this? Suggestions as to what to check?

Any and all replies will be appreciated!
1 - 1 of 10 Posts
check motor mounts

It is probably an out of balance wheel, but check the motor mounts just in case.The no vibration with no gas makes me think this is worth a check.
1 - 1 of 10 Posts
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