I changed a badly cracked muffler two days ago. Later that night driving my check gauges light came on for a few seconds, off for a few minutes, then on again. It did it again this morning. Because of the timing I'm wondering if the new muffler could be the problem. It was a few inches longer than the old one. It also started randomly slowing down for 2-4 seconds when I'm going 45-60. That started a few days before changing the muffler. Not sure if they are related.
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Tuesday, May 31st, 2022 AT 9:45 AM