Alright guys, I’ve been trying to find the source of a grinding noise for a while with no luck. I’ve searched the forums and haven’t found anyone else with this exact issue. It’s a 2007 Charger R/T, 5.7L, AWD, NAG1, 170k miles on her.
This is what I got, under a load such as hard acceleration from a stop, there is a metal on metal grinding noise, from inside the car it sounds like it’s coming from somewhere near the front of the tranny. I can reproduce the sound if I hold the brake hard and hit the gas like I’m trying to do a brake stand but without letting the wheels spin, just put a heavy load on the driveline. This makes me think it’s something in the tranny because at that point nothing is spinning except the motor and the torque converter.
I originally thought it was front CV shafts, it’s an AWD, but after replacing both cv shafts and both wheel bearings l, the grind is still there.
Today I did a tranny fluid and filter change. There were no metal pieces or shavings in the pan. The magnet it the pan had a small amount of sludge on it, almost like thick grease, but it was a very small amount. After the new filter and fresh tranny fluid I went for a ride.
The noise is still there.
Again, it’s only under a hard load like accelerating up hill or hammering it from a stop. Otherwise there is no noise, it shifts completely fine with no hesitation or slipping in any gears. Anyone in here ever have a similar issue??
This is what I got, under a load such as hard acceleration from a stop, there is a metal on metal grinding noise, from inside the car it sounds like it’s coming from somewhere near the front of the tranny. I can reproduce the sound if I hold the brake hard and hit the gas like I’m trying to do a brake stand but without letting the wheels spin, just put a heavy load on the driveline. This makes me think it’s something in the tranny because at that point nothing is spinning except the motor and the torque converter.
I originally thought it was front CV shafts, it’s an AWD, but after replacing both cv shafts and both wheel bearings l, the grind is still there.
Today I did a tranny fluid and filter change. There were no metal pieces or shavings in the pan. The magnet it the pan had a small amount of sludge on it, almost like thick grease, but it was a very small amount. After the new filter and fresh tranny fluid I went for a ride.
The noise is still there.
Again, it’s only under a hard load like accelerating up hill or hammering it from a stop. Otherwise there is no noise, it shifts completely fine with no hesitation or slipping in any gears. Anyone in here ever have a similar issue??
