It is only there for sound deadening & half ass looks
in colder climates it may help to keep some of the freezing temperature out, but mostly frozen temperatures rise out of the ground
If you ever noticed, between 2 am & 5 am your house seems to get warmer or cooler then it was a couple hours before then, if you don't use a/c or heating. It is from the ground releasing heat from the sun or chill from the ground
It might reduce noise by a hair. You might be able to make a better one using something like (fat mat) or marine Sound Down. Hamilton Marine sells a product called "Peace and Quiet". I put some in the back of my Dodge Magnum with very loud exhaust, helped a lot. GTyankee has the best idea, though.
I take those liners out as soon as I get the keys from the dealer.Here in AZ were temps are high most of the year anything that would hold in heat from the motor, goes
Not a comment, but, more of a question, could the paint on the hood be damaged by engine heat, if the insulation isn't there? Just wondering, as it seems the hood could get pretty hot. I once had a fiberglass hood on one of my vehicles, with no insulation, and no problems.
I have read somewhere that the piece under the hood actually has meltable pins attaching it on the newer vehicles and the pins will melt in the case of an engine fire allowing the blanket to drop and aid fire suppression.
After 17 years your under-hood liner was probably holding a lot of dust, sifting down onto your engine at every bump. I've run many vehicles over the years with-out the liners, NO PROBLEMS. I took the one off my Ram last year when I did my shaker hood project.
My 01 is good. To be honest with the older trucks the paint wasn't damaged from heat. But I acualy think thin spot in the factory paint. The stripes that forms on the hood goes clear to the roof. On the 95 it was known as the rust race stripe. Now on yours I think they use an electrostatic paint dust that bakes on.
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