General Maintenance & Repairs - Detonation at any RPM

I am having huge detonation issues, anytime I touch the gas pedal it detonates. I can do anything that I want on these cars but I can not figure out why this car detonates. It is completely stock. Well except for a muffler that is stock for me.

What steps should I take before actually going through and tearing this thing apart.

Details on the car would be nice...

Specify what you mean, what is the car doing.

Sounds like bad gas. Depending how much you have left, I would put some octane booster or another brand of 93 gas top top it off.

also, is it running excessively lean, does it have carbon deposits, is it overheating, are MAP/MAF sensors not working (causing incorrect timing advance)...?

you have to diagnose it (and not just tear it apart);

are you sure it is detonating (and not knocking from the bottom end)...?

As stated the car is totally stock, there is nothing done to it. It happens every time the gas is touched, so bad gas has been ruled out, as I have been through at least 40 tanks with the same issue. There are no check engine lights, car has 150k miles, it is clearly detonation, sounds like marbles rolling around.

As far as carbon build-up not sure, I have not torn the car apart. I would rather not on this one.

Everything seems to be working correctly.

and no overheating either

40 tanks of gas with 100% full-time detonation.......the engine would be dead by now.

You most likely have a failing 02 sensor(s). NO...you will NOT get an SES light or a code on all cars, PCM's act differently from car to car.

Get it scanned with the engine running to see how the 02's are switching........see if they are wacked.

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Not knowing what car we are talking about, Ive seen blown head gaskets when it is between cylinders cause it.

Not knowing what car we are talking about, Ive seen blown head gaskets when it is between cylinders cause it.

True.

Hopefully he would have reported in his post seeing a loss of coolant....especially after 40 tanks of gas with detonation. 40 tanks of gas would last me a year.

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so bad gas has been ruled out, as I have been through at least 40 tanks with the same issue.

Clearly this isn't detonation you are hearing, not for 40 tanks of gas. Your pistons would've been decimated a long long long time ago if you drove around for thousands of miles on 100% detonation.

What you are hearing is something else, but not detonation. Frankly I doubt a stock LS1 would last more than a tankful if detonation is present the whole time, much less 40.