I just replaced the catalytic converter on my 03 Nissan Altima 2.5s. The catalyst to this was a whirring noise and my car died. Now that the cat conv. Has been replaced the car starts and drives fine but the whirring noise is still there. I'm not sure if that is enough info, but I would like to know what the noise is and if it is worth fixing.
Sunday, March 24th, 2013 AT 12:09 AM