#PIT5496: Buzz / Rattle Noise From Right Rear Of Vehicle – (Feb 23, 2016)
|Subject:||Buzz / Rattle Noise From Right Rear Of Vehicle|
|Models:||2015 – 2016 Cadillac Escalade Models|
|2015 – 2016 Chevrolet Tahoe and Suburban|
|2015 – 2016 GMC Yukon Models|
The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.
Some customers may comment that they hear a rattle or buzz noise from the rear of the vehicle. It may be most noticeable when driving 35 to 40 MPH or while in gear at a stop.
Road test vehicle to get it up to operating temperature so concern can be duplicated. Remove right rear inner fender well and inspect the rear auxiliary heater / evaporator lines for contacting each other.
For vehicles repaired under warranty use:
|Labor Operation||Description||Labor Time|
|4480418*||Reposition Aux Evaporator or Heater Core Pipes||1.0 hr|
|* This is a unique labor operation for bulletin use only.|
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.