I have determined that the rattling sound I have on my 2002 Volvo s40 is because of a corroded heat shield. It must be replaced. The shield fits over the muffler. I am not sure what it is called. Would it be the muffler heat shield?


I think that owing to its position over the muffler, it is not an exhaust manifold heat shield; I just need a name.


Then I must order a replacement.


Any help appreciated. Thanks in advance.


Respectfully,




Newport_j

 

N-J, On the Gen 1 S40s there are several heat shields guarding the body from the turbo and exhaust system. You'd need to use a parts diagram on a dealer web site like OEM Volvo Parts | VolvoWholesalePartsDirect.com to ID which one is corroded. Most are just held on by a few bolts so you may be able to fabricate a washer solution to grab onto more metal if the bolt has pulled through.

 

Are they protecting the passenger compartment from the engine's heat or are they there say to prevent a fire if you park your Volvo over a tall pile of dry leaves?


Also, is this heat shield really necessary regardless of it use. Whenever I take my car to a professional mechanic (3 times in the last two weeks). All they say is just to take that heat shield off - permanently. When I respond that it must be there for a reason they respond no it is not. The US government makes Volvo put them on. That is why they are on and nothing more.


Any thoughts on this?


Respectfully,


Newport_j

 

Guard plates engine compartment exhaust system. Fits: 2002 Volvo | Volvo Wholesale Parts Direct gives a picture. The various parts range in price from 40 to 120. I suppose you could also shop at a Recycle yard to save a few bucks. Personally, I'm not a fan of deleting something that was engineered and put there for a purpose.