2007 Tahoe detonation
2007 Tahoe with 5.3L. Under medium to heavy load with light/medium throttle the engine has pretty bad detonation, give it more gas and it goes away.
No codes except for O2 sensor, which I'm pretty sure is because the cat converter has gone bad (replaced both sensors in Bank 1 and watched oxygen trace, cat doesn't appear to be working on driver's side).
I replaced the knock sensor about 7 years ago when it went bad and threw a code. Can't figure out what could be causing the detonation, any ideas?
-Alex
No codes except for O2 sensor, which I'm pretty sure is because the cat converter has gone bad (replaced both sensors in Bank 1 and watched oxygen trace, cat doesn't appear to be working on driver's side).
I replaced the knock sensor about 7 years ago when it went bad and threw a code. Can't figure out what could be causing the detonation, any ideas?
-Alex