Funny smells and firewalls

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Tutor: None Selected Time limit: 30 Days

My car started emitting a funny smell. It reminds me of the plastic-ey smell when using a hot glue gun. It started yesterday, specifically when I left work, because it didn't smell when I drove to work, and the smell started within a minute of starting the car. I looked under the hood for melting hoses, loose wires, etc. but the only thing I noticed is that there is a hole in the firewall fabric. Not a melted hole, not cut, but a chunk torn out. It's possible an animal got into my engine compartment, but anyways, could the smell be little pieces burning on the manifold? The smell is not smokey, not acrid, and not metallic (like an electrical fire). I know it's not brakes or belts, as there is no noise (and those smells are very distinct.) There's no visible issues that I can find other than the firewall. Car runs normally, no overheating.
Nov 30th, -0001
That is a very good possibility; the firewalls are made with fiberglass composite and shreds into fine tiny particles which may have settled on the manifold. If you continue smelling this, I would wait till your ride is completely cooled off and wash that section. If it continues, then, well, obvious it was not the fibers. However, majority of the smell that come our car we are familiar with what is causing it. Good luck!
Jun 14th, 2013


Now that I think of it, look under the firewall section and locate the exhaust tubing to see if there is any left over residue. That could also be burning and cuasing the smell. If it was an animal, you could also be smelling fir comming from one of these locations.

Jun 14th, 2013

Thanks. A relative also looked at it and pointed out that the fabric was somewhat dry rotted, as he could pull pieces off without a problem. Is this a common replacement part, and do you know how much it costs to replace? After reading archimedes' post, I suppose it's not the firewall but it is some sort of "fabric" lining the back of the engine compartment... maybe a heat shield or sound barrier?

The smell disappeared after cleaning the engine, but it came back this morning.

Jun 17th, 2013

It is the heat shild and the repairing cost will vary depending on the type of material you chose as well as who you purchase it from. More often then not, the average cost will be somewhere around $45 for the low end faric to $100 for a more formed piece. Formed piece meaning a high resistence heat shield that you can conture to our firewall.

Jun 17th, 2013

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Nov 30th, -0001
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Nov 30th, -0001
Dec 9th, 2016
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