HELP! does pinging sound like whistling?
i've recently noticed a new noise coming from my engine. it started occuring after i installed a new cold air intake. it sounds almost like a high screechy whistling noise, kinda like nails on a chalkboard. its not very loud at all, you have to listen for it. it happens on acceleration, and it seems to happen on all my tunes, whether its the performance tune with advanced timing, or the nitrous tune with retarded timing.
am i hearing pinging? it DEFINITELY doesnt sound like marbles in a tin can, rocks, or anything even close to what i generally hear described as ping.
*SOLD 05/24/08* 2003 Silver Frost XLT 4 Door, 3.0 v6 4x2 Automatic.
255/60 Toyo Proxes S/T on 18 x 9 Boss 304 Chrome Wheels.
Slotted Rotors with Ferro-Carbon pads.
Volant CAI, Crane Roller Rockers, Borla Pro XS Exhaust, MSD DIS-4 Plus Ignition.
Kenwood Headunit w/7" Screen, Infinity Kappas in front and rear, 12" JL Sub,
Custom Ported Enclosure with Flushmounted Infinity Amps.
Custom Interior including Reupholstered Headliner and 7" Visor-mounted LCD Screens.