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  1. FWD DeVille 1985-2005, Fleetwood, and 60 Special
    I have a 2003 DHS that developed a pulsing vibration at 60 mph or higher. All new tires (balanced,) new left front wheel hub, new front (right and left) drive shafts. I am told the next thing to try is replacing the hydraulic motor mount. I'm not convinced that's the problem. Anyone here...
  2. Escalade, EXT and ESV Forum - 2007-2014
    2013 ESV Platinum Picking up kids from school. Sat in line at idle for 20 minutes or so. Engine is up to temp. No issues Pull out of line and at the next stop sign, stopped and in Drive. Very rough idle, vehicle shaking. Accelerate and notice engine noise and sluggish acceleration. I've heard...
  3. XT5 First Generation Forum - 2017+
    This rumble started a few weeks ago. Since I have a hearing problem I had my adult granddaughter in the car and she heard it. It’s really prevalent on a rougher road surface. Not hard to find in rural NJ. So now I have emptied the console, glovebox and all the door cavities. I even took the...
  4. SRX 1st Generation Forum - 2004-2009
    I have a 2009 SRX that starts to vibrate when I get to speeds of 65 mph - 70 mph and above. It gets worse the faster I go. I learned that I can make the vibration stop if I turn on the Traction Control button (TC). It only vibrates when the Traction Control Button (TC) is off. What could be...
  5. Escalade, EXT and ESV Forum - 1999-2006
    Bought recently and engine blew in less than 100 miles! (yeah, I got screwed) Replaced engine and working through bugs. Bad vibration at 65-78 mph. It has newish goodyear tires. Discount tire balanced wheels, no help. Wrote letter to DT and Goodyear, another trip to DT, they went over it and...
  6. STS Forum - 2005-2012
    2005 STS 6cyl RWD. 117k miles When I am at a stop and start.to go, I feel a rumble type noise and unsure where it's coming from. If I start going from stop slow, the noise doesn't happen. Just wanting some ideas as taking it again to my mechanic Monday. Just past 1 year purchasing and...
  7. Escalade, EXT and ESV Forum - 1999-2006
    145k miles, over the past few weeks, there has been a vibration on heavy acceleration as well as a constant low vibration /rumble I could feel on my feet and through the pedal at freeway speeds. Had dealer inspect suspension , trans (had fluid swap), mounts, engine misfires, brakes, all checks...
  8. Seville and Eldorado Forum
    Hello again, just got Neptune tuned! Purring like a kitten and no hesitation! Problem; pretty mean vibration at 50mph and above has me worried. Do the bearings need repacked (front and rear) or just a tire balance? Idk 🤷‍♂️ Help me out please.
  9. CTS First Generation Forum - 2003-2007
    Replaced the spark plugs, cleaned the Throttle Body, and checked the Air filter. It vibrates at idle and worse when the Ac is on. When driving it’s bad at 30-50mph and smooths out after that. Motor and Trans mounts are solid. Curious if there’s something I’ve failed to check. Any and all info on...
  10. DTS Forum - 2006-2011
    Need advice. New coils and plugs, 3000 miles ago. New Water pump, New alternator, New power steering pump. New purge valve (3 weeks ago) - checked and no issues 130,000 miles Engine started running rich while driving ( local 30 MPH) Only code is P0300 engine coolant temperature sensor - no...
  11. STS Forum - 2005-2012
    When I drive at about 45 mph, my steering wheel gently rocks back and forth an almost imperceptible amount. When I drive at 70mph, the steering wheel vibrates back and forth, more quickly. Keeping up with 80mph Interstate traffic becomes a bit tiring with the steering wheel vibrating - at that...
  12. FWD DeVille 1985-2005, Fleetwood, and 60 Special
    The vibration starts around 65mph and continues upward. It does not feel like it’s in the steering wheel but rather the car itself. The tires are brand new and the place said that they balanced them. What else might be the cause?
  13. SRX 1st Generation Forum - 2004-2009
    When applying the brakes at speeds >50 mph I started feeling vibration in the pedal. Dealer claimed my pads had 30% life left and that the rotors were most likely the cause. They agreed that if I paid for the pads they would perform the labor for free to replace front pads and resurface rotors...
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