Last post on Mar 12, 2011 at 4:44 PM
You are in the Buick Rendezvous
What is this discussion about?
Buick Rendezvous, SUV
#8 of 17 Re: Is it just road noise? [tgeatz]
Sep 17, 2008 (2:58 am)
I think if your hearing a loud clunk it may be the rear knuckle bushings are shot.
#9 of 17 "Rumble/Roar" sound around 2200 RPM
Jul 03, 2009 (8:37 pm)
Is the kit referred to in an earlier post to rectify the noise I am hearing around 2000RPM up to around 2500RPM? It is an annoying rumble that resonates through the whole vehicle. I was going to have my muffler replaced, but if a kit exists, how much is the typical cost for parts and labour?
#10 of 17 Re: "Rumble/Roar" sound around 2200 RPM [garbal54]
Jul 08, 2009 (3:48 pm)
Here's an answer to my own question. There is a kit, described as a "dampener" GM part number 88964153 specifically for the Rendezvous and it's listed at some online GM parts suppliers for around $460. No idea what it is comprised of, or what is involved in the installation. So here's my next question...has anyone had any experience with this "product" and if so tell me about it! Thanks!!
#11 of 17 Re: "Rumble/Roar" sound around 2200 RPM [garbal54]
Jul 31, 2009 (6:51 am)
I just bought the dampener and didn't realize they are for AWD vehicles only!
#12 of 17 got rid of the thing
Jul 31, 2009 (8:27 am)
Good thing we got rid of the thing almost a year ago now. We found a nice dealer that was willing to absorb the trade in cost. We got a Ford Explorer and we couldn't be happier.
#13 of 17 Re: "Rumble/Roar" sound around 2200 RPM [garbal54]
Mar 07, 2011 (7:18 pm)
I've chased this noise on a few different model year AWD Rendezvous and tracked the source of the problem down to the rear driveshaft, usually the front half of the rear driveshaft. The hollow aluminum shaft appears to have a foam-like coating inside that breaks loose and vibrates, causing the annoying resonating hum, howl or whatever you want to call it. Looking at around a $1600 replacement cost, it was worth experimenting and the following has proven to be a cheap fix....
I drilled 2 holes, one on each side and at opposite ends of the problem driveshaft tube. With the holes drilled to match the size of the straw on a can of expanding spray foam, I emptied the contents of 2 large cans into the tube. When the foam had mostly stopped oozing out of the holes and began to set-up, I covered the holes with ductape and drove the vehicles at highway speeds for 20 to 30 miles, to let the foam evenly distribute and self-balance itself inside the tube. So far, it's worked every time.
#14 of 17 Re: "Rumble/Roar" sound around 2200 RPM [kschilk]
Mar 12, 2011 (3:06 pm)
I just replaced my pinion bearings and diff. fluid in my 2002 RDV AWD and still have a constant whining noise coming from my drive train. The whining noise is constant regardless of RPM's and the wheel bearings are fine. Is this consistent with the problem you diagnosed in the rear driveshaft?
#15 of 17 Re: "Rumble/Roar" sound around 2200 RPM [pastorkoffkey]
Mar 12, 2011 (3:52 pm)
On the ones I diagnosed, the noise was most prevalent at around the 2100-2300 RPM range but I'd suspect the same cause on yours. I put the vehicle on a lift and while I was underneath, I had an assistant start the engine and put it in gear. I had him powerbrake the vehicle (accelerate while holding the brake on) and vary the RPMs between 2000 and 2500 repeatedly. This caused the driveshaft lining to rattle and when I grabbed ahold of the affected driveshaft and or pushed upward on it, the noise would abate or stop completely.
#16 of 17 Re: "Rumble/Roar" sound around 2200 RPM [kschilk]
Mar 12, 2011 (3:59 pm)
My mechanic had it up on the lift and in gear. We did not try the powerbrake approach you mentioned. However he did apply pressure to the drivetrain and the noise actually got worse.
#17 of 17 Re: "Rumble/Roar" sound around 2200 RPM [pastorkoffkey]
Mar 12, 2011 (4:44 pm)
Although your problem may have another source, I assume the shaft noise will vary in intensity, frequency and RPM range, according to how much of the lining has come loose and whether only one or both parts of the driveshaft are affected. A simple bang of your fist on the side of the shaft should be a good indicator. If it rattles at all, it's likely the shaft is bad. Any resistance to the drivetrain at any point, could likely cause the loose liner to vibrate. You may have another problem but I'd absolutely eliminate the driveshaft noise possibility, before going any further. I've had several of these and it's always been the same thing...though they were '03 and later.