C5 torque Tube noises

[Scott S.]

Has anyone heard of noises coming from the Drive Torque tube?
Scott

[John D.]

Re: C5 torque Tube noises

scott

Probably need more info....here's what i found in the service manual if it's a whirring or squealing noise.

A whirring or squealing type noise increases or decreases relative to the vehicle speed and may be caused by a worn bearing. A MINOR whirring type noise should be considered normal.
Replace the bearings, as required.

[Richard M.]

Re: C5 torque Tube noises

Automatic or Manual? Under what conditions, idling, cruise, hot, cold? Exhaust pipe hitting somewhere?

If Automatic transmission, it may be the prop shaft coupling nut or bearings. My C6 had a missing rubber cover on the transaxle and caused bearing failure. Full story Here.



Document ID: 2184842
#PIP4466: Rattle Noise At Idle From Front Of Transmission Area - keywords bearing driveshaft prop propshaft shaft torque tube - (Sep 4, 2008)

2006-2009 Cadillac XLR 2006-2009 Chevrolet Corvette

Equipped with 6L80 (RPO - MYC) Automatic Transmission

CONDITION/CONCERN:
Some customers may comment on a rattle noise at idle with the transmission in gear. This noise may be heard from the area of the rear of the driveline

support and front of the transmission.

RECOMMENDATION/INSTRUCTIONS:
This conditions may be caused by the driveline support, rear prop shaft coupling nut (1) being loose allowing the hub (2) to move on the flexplate spindle (11) (see SI document 499587 for illustration). This nut should be torqued to 90 Nm (60 Ib ft). If the nut is found to be loose remove the nut, clean the threads and apply thread lock PIN 12345382 (Canada PIN 10953489) or equivalent to the threads of the spindle. Tighten the nut to 90 Nm (60 Ib ft). If the nut is not loose inspect the torque tube bearings prior to replacement of the torque converter or transmission oil pump.

Please follow this diagnostic or repair process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed.

GM bulletins are intended for use by professional technicians, NOT a "do-it-yourselfer". They are written to inform these technicians of conditions that may occur on some vehicies, or to provide information that couid aSSist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions, and know-how to do a job properly and safely. If a condition is described, DO NOT assume that the bulletin applies to your vehicle, or that your vehicie will have that condition. See your GM dealer for information on whether your vehicie may benefit from the information.

[Scott S.]

Re: C5 torque Tube noises

My apologies, the C5 2000 is a Manual transmission car.
Scott

[Stephen B.]

Re: C5 torque Tube noises

have heard a couple that sounded like bad rear end noises very loud to the rear of the torque tube new tube noise gone