I recently installed an OE dog bone (torque strut mount?) and one argument as to why this mount goes bad is that the other engine mounts are failing or have failed and contributed to its demise. In the past I had an Odyssey that had a failed engine mount and I suspected so from a thud sound when moving off from a stop. I confirmed this by putting the van in drive, foot on the brakes and pumping the accelerator pedal briskly. I could definitely see the engine jump. So I tried this with the Sienna and there is no "jumping ' of the engine at all, just a rotational movement towards the firewall. It was during this that I could actually see how much flex there is in the dog bone. If this were normal then it is a "wow" moment. I decided to measure the amount of travel so I had a friend pump the accelerator pedal while I took the reading. It was about 1/2 an inch. Is this reasonable? There were no visible leaks in any of the mounts nor were there any clunky or similar noises during the rotation of the engine.
So why the interest? Well, the van has a slight wobble/tremor/ shaking upon moving off and from what I have seen on the forum is that it could be engine mounts , wheel bearings or axle shafts. The van has been doing this for a few years now but I lived with it. The front end is tight! Recent OE control arm , ball joints , steering rack and struts , new tires and recent dealer alignment. I am inclined to rule the front end as not the reason for the situation. There are no growling noises from the bearings at all even though I really should do the 12 and , 6 , 3 and 9 push pull on the front tires. The axles are Carquest brand, new from Advanced auto. The drivers side has about 32k miles and the passenger side has about 15k miles. They are not clicking during tight turns but that does not rule out the possibility that one could at least be bad ( drivers side?). Since the the axles can be returned for a free replacement I am inclined to do the drivers side which was installed 5 years ago.
In any case, if someone with an 04-06 would be kind enough to see how much of a rotational travel they get with theirs under the testing procedure I described above I would be grateful. Then I would have something to compare to.
So why the interest? Well, the van has a slight wobble/tremor/ shaking upon moving off and from what I have seen on the forum is that it could be engine mounts , wheel bearings or axle shafts. The van has been doing this for a few years now but I lived with it. The front end is tight! Recent OE control arm , ball joints , steering rack and struts , new tires and recent dealer alignment. I am inclined to rule the front end as not the reason for the situation. There are no growling noises from the bearings at all even though I really should do the 12 and , 6 , 3 and 9 push pull on the front tires. The axles are Carquest brand, new from Advanced auto. The drivers side has about 32k miles and the passenger side has about 15k miles. They are not clicking during tight turns but that does not rule out the possibility that one could at least be bad ( drivers side?). Since the the axles can be returned for a free replacement I am inclined to do the drivers side which was installed 5 years ago.
In any case, if someone with an 04-06 would be kind enough to see how much of a rotational travel they get with theirs under the testing procedure I described above I would be grateful. Then I would have something to compare to.
