lately i have been hearing some grinding, took it into the shop and they said the welds on my heatsheild cracked. what the hell is up with this?

add this to the list of problems with my TL

1. header resonance
2. blown hid bulb
3. heatsheild grinds
4. paint chips
5. new tires

ARGH!

 

break the heatshield off and throw it away. its useless anyways.

 

rip it out.

 

When I had my Megans installed the shop let the exhaust hang under its own weight causing my heat shield welds to crack. I thought it was resonance at first but it turns out the heat sheild was vibrating against the cat due to the cracked welds. That heat shield is very thin and the rust ultimately turns it brittle.

Did you just have your headers installed? It may have cracked then.

Really its no big deal though. Its like a $30 part for a brand new one.

And while they are under there, have them check the rubber bushing inside your exhaust hanger. That rubber splits when it dries out over time.

Once they fixed my heat sheild and exhaust hanger I had no more noises, or what I thought was resonance. Turns out I never had 'resonance'.

You can just rip the heat sheild off, but be careful if you ever park in grass, especially if its high. :angryfire

 

what does this header resonance sound like? and do you hear it at idle or only when accelerating???

my headers are on their way and i'm trying to figure out what to expect.

 

it only happens around 2-3k rpm while accelerating. for me it sounds like a metal cricket, some people say it sounds like a weedwhacker hitting a fence

 

cool ill have em check it out.....i dont think i will be offroading in my TL any time soon hhaah

 

oh serious....that sounds like its gona be annoying. Is there no way to get rid of the resonance? ----that just turned me off on the whole header idea.

 

its the heatshield like i said before look into the RT or Magna Flow a direct replacement would be sweet if your thinking about a complete new exhaust system(intake,headers,cat,and exhaust)

 

what nkind of headers are they?? If u bought CT u got no prob otherwise cross your fingers anything from fittment ,wield,cracking,and resonace can become a problem

good luck

 

They're Megan Headers----does the pipe go lower than the factory manifold? I hear alot of people compalining about scraping their headers on lowered cars.

 

^^^^^
Yes the megans have an extra flex pipe which in turn ends up sitting really close.......I know my flex pipe is already scraped off although the header was not compromised