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Eric, Automotive Repair Shop Manager
Category: GM
Satisfied Customers: 32049
Experience:  20+ yrs. experience as repair shop manager and technician.
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Just got my gmc yukon its a 2016 bad clunk from drive into

Customer Question

just got my gmc yukon its a 2016 bad clunk from drive into reverse literally only gas 300 miles and also rattle from the tail pipe on acceleration weird. Can you help me.
JA: Where exactly do you think the noise is coming from? And how long has this been going on?
Customer: I just got it
JA: Are you fixing your Yukon yourself? What have you tried so far?
Customer: ITs brand new I would take it to the dealer
JA: Anything else you want the mechanic to know before I connect you?
Customer: no
Submitted: 10 months ago.
Category: GM
Expert:  Eric replied 10 months ago.


Does the clunk seem to come from the rear of the vehicle, directly underneath the front seats or the front end?

And vibration on acceleration or steady speed above 45mph?

Customer: replied 10 months ago.
Rear clunkVibration from stop
Expert:  Eric replied 10 months ago.


Ok, most likely the driveshaft rear ujoint is defective or less likely but possible is the rear differential pinion bearing.

This is most likely also causing the rattle in the tailpipe. The vibration will cause the tailpipe hanger to move and due to design where the tailpipe is very close to the rear axle it can hit it some and create the rattling sound

You will need to set up an appointment with the dealer and have them check the rear ujoint and the rear pinion bearing and replace as needed under the new vehicle warranty.

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Expert:  Eric replied 10 months ago.

I noticed we have not yet resolved your concern you asked about. I would sure appreciate it if you would reply so I can offer my skills and knowledge and repair guide access to help as best I can.

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