# 2006 Toyota Corolla intermittent metal on metal rattle coming from under car **URL:** \ **Category:** Maintenance/Repairs\ **Tags:** corolla, toyota\ **Created:** [March 3, 2013, 11:42am UTC](https://community.cartalk.com/t/2006-toyota-corolla-intermittent-metal-on-metal-rattle-coming-from-under-car/77756 "2013-03-03T11:42:08Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![Drazzil](https://avatars.discourse-cdn.com/v4/letter/d/46a35a/32.png) [@Drazzil](https://community.cartalk.com/u/Drazzil)\ **Post date:** [March 3, 2013, 11:42am UTC](https://community.cartalk.com/t/2006-toyota-corolla-intermittent-metal-on-metal-rattle-coming-from-under-car/77756/1 "2013-03-03T11:42:08Z")
The rattle appears as I rev the engine at a certain RPM. It happens in every gear. I had the car jacked up and the heat shields checked today when I had my tires rotated. Unfortunately for me my 2006 Toyota Corolla was NOT doing this when I was at the tire shop. I opened the hood and the sound is NOT coming from the engine. It sounds like it is coming from the middle of the car, or maybe the passenger side. I am stumped. I did all the maintenance on the car and everything. ---
**Author:** ![dagosa](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/dagosa/32/9837_2.png) [@dagosa](https://community.cartalk.com/u/dagosa)\ **Post date:** [March 3, 2013, 8:28pm UTC](https://community.cartalk.com/t/2006-toyota-corolla-intermittent-metal-on-metal-rattle-coming-from-under-car/77756/2 "2013-03-03T20:28:38Z")
I can only tell where my similarly placed “rattle” is coming from…a broken weld in a exhaust heat shield which you say you have not discovered. Otherwise, I have had them in the past eminate from an exhaust pipe that either by hitting something or age of the hangers, found themselves too close to a frame member or other component or structure. Often, it can be illicited by just shaking it by hand from underneath but ometimes not. I would check clearances and look for damage allong entire length of exhaust. These are guesses from some one who just turns the radio up as his cars age. ---
**Author:** ![Drazzil](https://avatars.discourse-cdn.com/v4/letter/d/46a35a/32.png) [@Drazzil](https://community.cartalk.com/u/Drazzil)\ **Post date:** [March 4, 2013, 7:35pm UTC](https://community.cartalk.com/t/2006-toyota-corolla-intermittent-metal-on-metal-rattle-coming-from-under-car/77756/3 "2013-03-04T19:35:01Z")
Here is a possible wrinkle to the story. About 3 and a half years I was in a low speed front end collision with this car. I had the work done by a reputable shop 5000 dollars worth. Is it possible that a wield popped loose and that is the source of what I am hearing? ---
**Author:** ![the\_same\_mountainbike](https://avatars.discourse-cdn.com/v4/letter/t/c89c15/32.png) [@the\_same\_mountainbike](https://community.cartalk.com/u/the_same_mountainbike)\ **Post date:** [March 4, 2013, 11:04pm UTC](https://community.cartalk.com/t/2006-toyota-corolla-intermittent-metal-on-metal-rattle-coming-from-under-car/77756/4 "2013-03-04T23:04:49Z")
Anything is possible. When you took it to the shop, did you ask them to “check the heat shield” or to “find the rattle”? I only ask because this is a common error people make. They suspect some particular thing and only ask the shop to look at that particular thing rather than to look for the cause of the problem. ---
**Author:** ![knfenimore](https://avatars.discourse-cdn.com/v4/letter/k/9fc348/32.png) [@knfenimore](https://community.cartalk.com/u/knfenimore)\ **Post date:** [March 5, 2013, 12:23am UTC](https://community.cartalk.com/t/2006-toyota-corolla-intermittent-metal-on-metal-rattle-coming-from-under-car/77756/5 "2013-03-05T00:23:33Z")
I had a rock in the heat shield rattling once. It could be a broken weld or even a internal rattle in muffler or catalytic converter.