That's commonly called the "Dog Bone" because of its shape. If this one goes, you might want to check other engine mounts on the bottom of the engine, where they attach the engine to the subframe.
Yeah, 100K miles isn't bad. Many rubber things can go bad around here. Typically give or take +/- 20K miles. Other things, for example, are alternator brushes (called alternator brush assembly, $20 at the dealer). I'd preventatively do the water pump and radiator hoses as well, depending on how long you're going to keep that car. However, your engine has a known cylinder head bolt thread disintegration problem. Probably a metallurgical defect from the use of an insulation. They're reported to show up after about 80K miles.
Toyota issued a TSB 2 years ago about this failure:
TSB 01507, NHTSA #10021542, Dated April 6 2007. I guess most people are out of the powertrain warranty by now.
Also AERA issued:
Coolant Loss on 2002-2006 Toyota 2.4L, 2AZFE engines
The following information concerns the loss of coolant on some 2002-2006 Toyota 2.4L, 2AZFE engines. The location of this condition has been noted at the rear of the
engine where the cylinder head bolts to the cylinder block.
It has been reported that stripped head bolt threads have been found on some of these engines during tear down. When the two rear head bolts lose their clamping ability they allow coolant to seep out at the rear of the cylinder head.
To repair this condition, engine builders report using thread repair tooling used for various GM engines. Specifically, Cadillac 4.6L engines use the same threaded head bolts (Figure 1). The head bolts for this Toyota engine may be reused if they are not damaged and meet the following length specification.
Using a vernier caliper, measure the length of the head bolts from the seat to the end.
Specified bolt length: 6.350˝ to 6.465˝ (161.3 mm to 164.2 mm). If the length is greater than the maximum, replace the bolt.
This information was provided by the Engine Builders Association (AERA).
Another discussion:
http://www.bobistheoilguy.com/forums...1497817&page=1
Quote:
Originally Posted by Sella Turcica
I was about to order a new serpentine belt for our '03 Camry 2.4 (90k mi), and I noticed something nearby was worn out. There's a circular rubber thing, I'm guessing a motor mount, since it attaches the passenger side strut tower to the engine. The rubber inside it is all cracked and broken.
A couple of questions... I'm surprised it's broken, since no accidents... is this a 100k mi part? Is it imperative that I replace it, or is it of relative unimportance? I am definitely going to do the serpentine belt though!
Thanks again
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