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Rusty exhaust resonator - when will it die?

Old 08-09-2018, 10:53 PM
Junior Member
Thread Starter
Join Date: Jul 2018
Location: Pottstown, PA
Posts: 13
Question Rusty exhaust resonator - when will it die?


I'm considering buying a 2006 Volvo XC90. Among other things, I noticed what appears to be a very rusty resonator of the exhaust system.

I took a few pictures of the resonator, along with another one of the exhaust towards the muffler, which I've posted further below.

I live in Southeastern PA - near Pottstown. So we get plenty of snow, rain, sleet, slush, and salt. The car will NOT be garage kept. It will be driven about 10k - 15k miles per year.

  1. Can any of you please tell me how long do you think it will last before it needs to be replaced?
  2. Also, how could I get a good estimate of what the repair bill would be like?

Thanks for your opinion.


Old 08-10-2018, 06:51 AM
Senior Member
Join Date: Oct 2010
Posts: 5,045

Most of the time the outer shell comes apart and can just be cut off. But that third picture looks like you might have a hole developing.

Cost-wise, you'd be best to call your local dealer. Then call a local exhaust shop. The exhaust shop will likely be way cheaper.
Old 08-10-2018, 07:41 AM
Senior Member
Join Date: Nov 2006
Location: Birmingham AL
Posts: 1,502

I see that you are in Pennsylvania. I saw your pics and the entire underside of the vehicle is pretty rusted. Now, I'm comparing to what I see here in Alabama granted, but I'd look at everything else too.

A muffler rusted that bad is rare for me, here. I'd also be checking brake lines and the basic structure of the vehicle.

We have a long-standing joke here about northern vehicles. When you buy one, make sure to get a couple of sticks of dynamite to blow the wheel off if you need to change a tire. The wheels can rust to the hubs to the point that they have to be pounded off.
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