2005 LX470 209,xxx miles AHC, completly stock, chrome 18" factory wheels. I just bought the vehicle and put 1000 miles on it so far. When I bought it it had a bad drive line vibration at 35-40 and again at 60-70 only under load. The front and rear driveshafts were worn out an replaced with factory driveshafts. The vibration is pretty much gone but I still get a rumble-vibration under load from 60-65. Anyone have any ideas on what to check? The transfer case/transmission mount seam kinda hard to me but not sure if that would be the cause or not. Wheel bearings? New to the LC100 platform but longtime Tacoma owner.
Driveline vibration help
- Thread starter tellurado
- Start date
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2001LC
SILVER Star
Under load makes me think engine, torque convert, transmission, differential..
I've no doubt you Wheel bearing do need servicing.
Needing to replace both forward & aft propeller shafts (aka driveshafts), indicates improper PM. I'd be flushing all fluids. Inspecting condition of fluids as they come out.
I've no doubt you Wheel bearing do need servicing.
Needing to replace both forward & aft propeller shafts (aka driveshafts), indicates improper PM. I'd be flushing all fluids. Inspecting condition of fluids as they come out.
Try this:
After this has been done perform a road test with the same condition to try to recreate similar scenario when the vibration becomes evident. Keep us posted.
After this has been done perform a road test with the same condition to try to recreate similar scenario when the vibration becomes evident. Keep us posted.
Don’t underestimate an out of round tire. I would start with getting them all re-balanced (road force balance) if you haven’t done so already. Any uneven wear will be captured by the road force. This is an inexpensive item to check before you get into more driveline items.
- Thread starter
- #5
Just to clarify, both front and rear driveshafts are brand new and greased up. I do have a brand new set if wheels and tires to put on (as soon as new lug nuts show up). I am curious to check out the wheel bearings, I would suspect they are in need of love. It is defiantly under light to moderate load around 60-65ish. I have all the parts and fluids to do a baseline service as well as timing belt/water pump. The service history seam pretty up to date. The transmission has a hard shift into 4th when cold. Also planning on flushing the transmission. I hate vibrations/rumbles and unfortunately for me, I seem to be hypersensitive to them.
2001LC
SILVER Star
That hard shift, is point "under load" more toward TQ/transmission.
I hope you're not lube propeller shaft slide yokes while on jack stand, like that guy in above video. That can cause excessive pressure on transfer case and diffs.
I hope you're not lube propeller shaft slide yokes while on jack stand, like that guy in above video. That can cause excessive pressure on transfer case and diffs.
I had a pretty serious vibration under load around the same speed; disappeared after changing out CVs
Also, tire vibration is a complete ass to chase down from my experience on this vehicle. I had some constant vibes around 70mph, and I was 100% sure it was suspension or driveline related, and then replaced the tires and *poof* gone.
Also, tire vibration is a complete ass to chase down from my experience on this vehicle. I had some constant vibes around 70mph, and I was 100% sure it was suspension or driveline related, and then replaced the tires and *poof* gone.
2001LC
SILVER Star
Yes, over filling slide yokes has reportedly cause issue. I only mentioned, as that videos needs editing or deleted. One issue is; blows out a plate in end of slide yoke, not a big deal. Others have said damages transfer case output shaft seal and/or bearing. If slide yokes lubed with wheel hanging freely (vehicle not in neutral stance). It's best to remove grease zerks as vehicle lowered.
Wheel balancing on the 100 series is difficult. Road force if done right (which rarely is by new techs) with a Toyota cone hub and 5/150 finger plate is best. Balancing issue was more apparent on 16" wheels. I keep a set of Tundra wheels with stock size tires for test drive/feel.
Long down hill rolls at high speed in "N" care be a good diagnostic tool. It you hear WAH WAH WAH oscillating sound, it's bearing related. Which of the many bearings is an art to discern.
Wheel balance, bearings, transfer case output bearing would not normally care if under-load at high speed or not. They be more speed dependent, for most part.
CV may respond to load. But should be able to tell if issue (remarkable play) by hand twisting inspect, also clicking in turns.
Wheel bearing, axle bearing & bushing not likely just under load at high speed.
Spiders (AKA u-joints) will vary a bit under load. But new OEM are not likely to be defective.
What I find telling about your statement is "under load", hard shift into 4th and that you had too replace both propeller shaft and I assume all 4 spiders. At such a low mile is telling as to service history (PM) and use (severe).
If you get down to Denver stop by I'll take a look with you.
Wheel balancing on the 100 series is difficult. Road force if done right (which rarely is by new techs) with a Toyota cone hub and 5/150 finger plate is best. Balancing issue was more apparent on 16" wheels. I keep a set of Tundra wheels with stock size tires for test drive/feel.
Long down hill rolls at high speed in "N" care be a good diagnostic tool. It you hear WAH WAH WAH oscillating sound, it's bearing related. Which of the many bearings is an art to discern.
Wheel balance, bearings, transfer case output bearing would not normally care if under-load at high speed or not. They be more speed dependent, for most part.
CV may respond to load. But should be able to tell if issue (remarkable play) by hand twisting inspect, also clicking in turns.
Wheel bearing, axle bearing & bushing not likely just under load at high speed.
Spiders (AKA u-joints) will vary a bit under load. But new OEM are not likely to be defective.
What I find telling about your statement is "under load", hard shift into 4th and that you had too replace both propeller shaft and I assume all 4 spiders. At such a low mile is telling as to service history (PM) and use (severe).
If you get down to Denver stop by I'll take a look with you.
