It had rained very heavily a few weeks ago and I drove in the rain with a couple of people in the car. Some of the streets had a lot of water collected. After that day, I have been noticing a droning/growling sound when accelerating the car 20-30 MPH and even when going faster when applying the gas a little more. The car's spark plugs were changed at 117,000 miles. Is this some exhaust leak issue or heat shield that is loose?
Sep 14, 2025 at 8:07 AM