So I need to ask, how are the mounts on the car? The reason I ask is because I had something similar to what you have going on the last time I went to NC on vacation. The oil filled mount was so shot that a CV joint was hitting something (I can't remember where exactly) I drove it 500 miles home like that and once back home I was able to switch it out. Nowhere in NC that I was around had a mount and would have had to order 1 and we didn't have the time to wait for it.
It was a bitch to track down and I was lucky enough that my brother in law helped me find it.
With the help from someone, either have them slowly back up and drive forward while you look for anything that is hitting while it's moving or you drive while they look. My noise only showed up under load while the car was on the ground. Sure enough, he was able to see exactly where the axle was hitting due to the mount being blown out.
It may not be exactly what your issue is but it's worth a shot.
Thanks DJ for your sharing. I was too busy yesterday.
By "mounts", do you mean engine mount (engine mount) or front struts (shock absorber)?
1. I have replaced all three engine mounts and transmission mounts with the OEM one last year. They are expensive, the total price of parts is $400.
2. I also replaced all six control arms last year with aftermarket parts, total price is $160 on Amazon.
The car had been great, I enjoyed every minute when driving it.
But since last year, as a 11-years-old car, it began showing many problems, such as
1. control arm balljoint noise
2. thermostat stuck open and leak
3. radiator leak
4. rough idle.
5. transmission shift problem
6. driver speaker no sound
7. center dash lid broke
8. many electrical circuits problem, such as headlight flicker
I did most DIY repair myself to save money. But my wife complains that I spent much more time on a old car than on her and the kid...
I just don't know if should continue to invest a little more money on the repair or drive as is to engine failure.
Test drove the new 2019 Mazda 6, I don't like the handling of it. It drives like a Camry but with louder windnoise. It was not double wishbone any more. I still like the handling of 1st-gen.