About a week ago I noticed that when I would come to a stop at a stop sign I could feel the car downshift into 1st gear. It didn’t happen all the time but it was noticeable and a completely new feeling, like a subtle bump. Never felt that before since buying the car brand new.
Once I got home I put the car in park and left the engine running. My idle was bouncing between 750RPM and 2,000RPM. If I pressed the accelerator while in park it would increase as expected. I would take my foot off the accelerator and it would settle down to about 500-750RPM and start surging to approximately 2000RPM again. Turned the car off/on and it exhibited the same behavior.
Drove the car normally for a few days and today I noticed that the car, after driving for a bit, would idle really low below 500RPM, and I could feel the car shake and rumble slightly. This was while in Drive sitting at a red light. I thought it was going to sputter out and die on me in traffic.
Searching the forum for low or rough idle on the 2.5L has brought up a few scary threads mentioning engine or head replacement… So I wanted to post my details here to see what you all might think.
It’s a 2019 CX-9 AWD GT with only 14,000 miles and still under warranty until August 2022.
Once I got home I put the car in park and left the engine running. My idle was bouncing between 750RPM and 2,000RPM. If I pressed the accelerator while in park it would increase as expected. I would take my foot off the accelerator and it would settle down to about 500-750RPM and start surging to approximately 2000RPM again. Turned the car off/on and it exhibited the same behavior.
Drove the car normally for a few days and today I noticed that the car, after driving for a bit, would idle really low below 500RPM, and I could feel the car shake and rumble slightly. This was while in Drive sitting at a red light. I thought it was going to sputter out and die on me in traffic.
Searching the forum for low or rough idle on the 2.5L has brought up a few scary threads mentioning engine or head replacement… So I wanted to post my details here to see what you all might think.
It’s a 2019 CX-9 AWD GT with only 14,000 miles and still under warranty until August 2022.