Check Engine light stays on and the muffler seems to make a rattling noise when it is started sometimes and when it is idling at a red light.
Jun 4, 2008 at 1:50 PM
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MERLIN2021
CERTIFIED EXPERT
17,250 POSTS
First thing you need to do is have the codes read, Autozone does it free, Post the results with the code number(s). Even if the service engine light is not on, there should be freeze frame data stored.
If it won't make it to Autozone, buy a cheap scanner, they can be had for 30-40 dollars, a good investment, since they cover all cars sold in the USA from 96 on...
If the light is blinking, it means possible damage to the converter...service it right away!