There last 3 weeks we have seen some very cold temps in central PA. The Thump noise disappeared with colder temps (mid 30s).. It was warm this week, temps high 40s low 50 and the thump came back.
Wonder if the temp impacts heat dispersion in the region of the rear diff unit? Would temps below...
Thanks for the reply. No issues with the storage bins. Jack is secure and the spare is secure. It was determined it's related to the drive train. Switching to sport Mode and the noise isn't present. The amount of shifts decreases in sport mode; transmission shifts are differ.
No bulletins from...
The noise I'm hearing is definitely during a downshift in drive mode - when slowing to turn or slowing into traffic.
Switching to sport mode changes the revs/shift pattern. I'v been using Sport mode all weekend and the thump or "thud" as you describe is no longer present.
The service appt has been completed. I went on a road test with the lead mechanic from the service dept. We agreed that we are hearing the same sound in normal drive mode when slowing to make a turn or stopping; it's subtle. I suggested to change to sport mode. We switched and drove the same...
I think the noise is coming from the read diff when the trans is dow shifting. I switched to sport mode and didn't hear the noise after a road test. First time I used sport mode.
Going to make an appt. with local dealer. There is another thread about a thump noise. Just search: Weird noise and...
I just noticed the sound in the same scenario. Definitely not the jack behind the seat. Seems like it's from the rear/undercarriage somewhere. I am going to check the spare. It could be sliding forward and back upon breaking/stopping.
It could be from the downshift. Just a normal operation...