Whenever I press on the gas regardless of my speed, a loud rattling sound comes from under the car, usually happens after I make a stop and start to take off again, I just replaced muffler and that didn't make a difference.
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1994 Honda Accord Question: What is causing rattling noise coming from underneath car when I press on gas?
Answer #1Chevy Power August 16, 2012, 12:46Journeyman
There ma be a loose heat shield or a broken hanger. When the exhaust is cool try banging on it in different spots with the palm of your hand.
Answer #2goodguy August 16, 2012, 14:38Master
I agree with chevy power but it could also be a catalytic converter
Answer #3Greg's Orange Auto (14928 Answers) , Orange, CA - (714) 361-9386globalhelper August 16, 2012, 15:32Master
def in exh system somewhere seek est from muffler shop
Answer #4ziptie12 August 25, 2012, 13:03Master
Check converter heat shields , they rot out and get loose. Your description of symptom fits that perfectly and is quite common.