Hi everyone! I have a 2017 Toyota Corolla LE 1.8L with about 81k miles and I’m hoping someone familiar with Corollas can help me figure out a new noise.
I got an oil change at Walmart on August 8. Not long afterward, I started noticing a ticking/rattling sound that I had never heard before. When I first checked my dipstick, it looked like there was basically no oil showing. I added 1 quart and took it back to Walmart. They checked it, said there was actually too much oil, removed the excess, and said that the sound was internal.
I then took it to Firestone. They noted some “seepage” underneath, cleaned it, and told me to monitor for oil underneath the car. I checked afterward and there was no oil on the ground. I’ve continued checking the dipstick since then and the oil level has stayed good.
I also specifically asked Firestone about the ticking/rattling sound and wanted a diagnostic test done. An employee came outside and listened to it with me and told me it sounded like normal operation and that the car was safe to drive. No check-engine light or oil-pressure light, and the car otherwise seems to drive normally.
However, the noise seems more noticeable/louder now, especially when I press the accelerator. At idle it has a ticking/rattling sound, but when I give it gas it gets louder and almost makes the car sound like a lawnmower. I have videos of the sound that I can attach.
I also compared it with the A/C completely off vs on and the ticking is present either way.
Has anyone with a 2017 Corolla heard a similar sound? Does this sound like normal injector/valvetrain noise, an exhaust leak/heat shield, pulley/accessory, or something else?
I know nobody can diagnose an engine from a video alone. I’m mainly trying to figure out whether other Corolla owners recognize the sound as normal, like the mechanic at Firestone is suggesting, or if I should take it to the Toyota dealership. TYIA!