Is my Cat.Converter going bad?
I have a 2003 Tahoe with 132,000 miles on it. I have always had slight weird "muffling" noise through exhaust system during heavy acceleration. It has gotten worse now, and during acceleration, I have...
Forum Discussion
eHoefler wrote:
Sounds like a baffle came loose in your muffler, a common issue in a vehicle with that many miles. When a cat plugs up, usually you will have a hissing sound and no power at all.
On the wife's old Infiniti QX 4 SUV, the cat developed some sort of noise on acceleration and was replaced under warranty. We weren't sure where the noise was coming from but they eventually figured it out after servicing the rear differential thinking the noise was coming from that area.
