mattcalica

okay, i did the search and came up with like 131 results...i know detonation sounds like "marbles hitting a coffee can" but where is this sound supposed to come from? at idle, i can hear this "pinging" sound coming out of the exhaust, but i really notice nothing at high rpm. is this "pinging" detonation? i hear nothing coming from the engine bay, its just the exhaust with the slight ping to it. anyone know?

dfoxengr

sounds like bluhhddddddadablahbdadadadauhhhhhhhhhhblaaaaaaaaa

mattcalica

yah, kinda, i guess...is that detonation?

mattcalica

ahhh, cmon you guys...see, the reason idk what this is, is that its happening at idle. i am not boosting, yet, but i want to make sure my motor aint gonna blow up once i add my turbo. its a real slight noise coming out of my exhaust. i can only hear it, if i walk around to the back of my car. i checked my plugs and they had nothing on them, so is this just a normal sound?

ion_four

if you can hear something that sounds weird and your motor is boosted and in one piece, still; it is not detonation! If you can hear it over your exhaust and intake, you're motor is detonating to an insane degree.

If that soud is just at idle, it's just a fueling problem, but isn't going to blow your motor.

mattcalica

thank you very much sir...that is all i needed to know...oh, new question, by the symptoms, do you think my car is running rich or lean? it smells a little rich, but the symptoms seem to point towards running lean...any insight?

Goldfingiz

As you're moving, if the car suddenly gets a significant loss of power, usually stops going, and makes a REALLY fast rev limit/popping sound, that's detonation. You'd notice it.