Seeking some ideas to help me diagnose an odd sound I've been having. 2014 SXT, 3.6L, 137k.
So here's the scenario... only happens to me on cold starts, and always at the same time. I start the car, reverse out the parking spot/driveway, shift into drive, and begin pulling away. After about 10-20 feet of travel I hear a clunk. Not like a suspension clunk. It is more similar to what a compressor sounds like kicking on, or a valve opening or something. But louder.
Outside air temp doesn't matter, but it only occurs on cold starts after the car has been sitting a while.
If I just idle away for a while after backing out, it just delays the sound. Only happens if I am applying gas to accelerate away. If I apply more gas, and accelerate faster, it just occurs sooner.
It has been happening for months, but it seems to be louder now.
Also, out of a weird bit of timing yesterday, I had taken my foot off the gas to begin braking when this sound occurred. Just as I placed my foot on the brake, but before applying pressure, this sound occurred and I simultaneously felt a strong tap feeling through the brake pedal.
Any ideas?
Thank you all.