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Bad Catalytic Converter????
I hear it coming from the engine, but dealer saying its the catalytic converter. I will see what the codes are myself on the check engine light to see if anything paints toward cat. The engine is burning roughly between a quart and half to two between oil changes, which is not normal, but they...- Sergio Luevano
- Post #3
- Forum: Engine & Drivetrain
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Bad Catalytic Converter????
I am having an issue with my 2007 yukon 5.3L engine. It started with a check engine light and then, when I would accelerate after 4500 RPM there is a loud bang from the back end. I have knocking noise every morning that goes away after 30 seconds. Took it in to the dealer and apparently the only...- Sergio Luevano
- Thread
- Replies: 7
- Forum: Engine & Drivetrain
