I have a rattling noise coming from underneath my truck that is mostly noticeable when it is idling. At first I thought maybe a baffle had came loose in the muffler. I took the truck to a muffler shop and was told it was my catalytic converter. The muffler will also need to be replaced since it has holes in it. I just wanted to know if I would be getting a rattling noise if my catalytic converter was bad. The truck seems to run fine and I haven't noticed that my gas mileage has gone down. This rattling noise on my truck has been there since last summer but I haven't put many miles on the truck since then.
have the same problem?
Thursday, February 27th, 2014 AT 8:03 PM