euroz06
Well-Known Member
Hi all,
68 charger/383/auto. On my recent drive I got some weird noise from the driveline, and I can't isolate it well. Most of the time it sounds like a very loud valve tapping (or like something was stuck to the driveshaft and as it spins it hits something - tapping increases as the speed increases). It is not coming from the engine. Sometimes though, i hear very loud metalic clunks, almost like the engine is having a catastrophic desintigration (but its not coming from the engine). It seems to go away when i put it back into park and start driving again. It seems to me it comes on when i ride over small bumps - like something shifts in the driveline and misaligns, and it makes the noises. Mind you, the car feels like its driving fine, shifts fine, engine works great.
For example yesterday, i drove out of the garage, all was fine. i came up to a traffic light and ran over the road markers, and the tapping came on (starting from slow speed, up to city speed limit). when I threw it in neutral, there is no noise and if i free rev, there is no noise. I threw at back to D, noise seems to have left. I went on the highway, no noise. On the way back I tried to give it WOT, all was ok, then stopped at the light and started driving again, then a different horrible clunking came on (like a metal belt connected to the engine pulley was hitting everything in the engine bay). I stopped, put it in park, popped the hood, everything is in place. I started driving, and the noise was gone, i drove on the road for good 10 min, then highway, came back from highway, stopped at the light, and the tapping came back. If i drive with the noise, it won't go away, unless i do some tranny shifting. I initially thought maybe its the dif, but i assume if the diff was at fault, the noise would be a lot more consistent. It feels like its coming from tranny area (driveshart or maybe torque converter). Transmission seems to shift as it always does.
Any thoughts on what it could be? I got under the car, and there is nothing visibly wrong, but it was a quick look. I wonder if maybe a tranny bolt came loose/fell out (i had it happen in one of my previous cars). I tried taking a vid, you can hear the tapping in the back, but the wind noise make it sound faint, it is not faint and is much louder.
68 charger/383/auto. On my recent drive I got some weird noise from the driveline, and I can't isolate it well. Most of the time it sounds like a very loud valve tapping (or like something was stuck to the driveshaft and as it spins it hits something - tapping increases as the speed increases). It is not coming from the engine. Sometimes though, i hear very loud metalic clunks, almost like the engine is having a catastrophic desintigration (but its not coming from the engine). It seems to go away when i put it back into park and start driving again. It seems to me it comes on when i ride over small bumps - like something shifts in the driveline and misaligns, and it makes the noises. Mind you, the car feels like its driving fine, shifts fine, engine works great.
For example yesterday, i drove out of the garage, all was fine. i came up to a traffic light and ran over the road markers, and the tapping came on (starting from slow speed, up to city speed limit). when I threw it in neutral, there is no noise and if i free rev, there is no noise. I threw at back to D, noise seems to have left. I went on the highway, no noise. On the way back I tried to give it WOT, all was ok, then stopped at the light and started driving again, then a different horrible clunking came on (like a metal belt connected to the engine pulley was hitting everything in the engine bay). I stopped, put it in park, popped the hood, everything is in place. I started driving, and the noise was gone, i drove on the road for good 10 min, then highway, came back from highway, stopped at the light, and the tapping came back. If i drive with the noise, it won't go away, unless i do some tranny shifting. I initially thought maybe its the dif, but i assume if the diff was at fault, the noise would be a lot more consistent. It feels like its coming from tranny area (driveshart or maybe torque converter). Transmission seems to shift as it always does.
Any thoughts on what it could be? I got under the car, and there is nothing visibly wrong, but it was a quick look. I wonder if maybe a tranny bolt came loose/fell out (i had it happen in one of my previous cars). I tried taking a vid, you can hear the tapping in the back, but the wind noise make it sound faint, it is not faint and is much louder.
