Hello All and thanks in advance for any advice.
I have a 2011 Auris Hybrid and lately the engine idle when changing from running to standby (like when you stop at a light) has been shuttering dramatically.
It seems to be linked to the heater system... When I drive the car without the heater on it seems to idle and enter standby normally, with the heater on, however, it immediately begins to shake the entire vehicle. I ran the AC to see if it had to do with the electric charging system but with the AC on the vehicle performed normally.
Anyone have any idea what the situation could be? Is there a belt/heater motor that could be going bad which is causing the engine to struggle. It is dramatic. With the heater on the engine shakes the whole vehicle while idling when I switch the heater off it immediately stops. Then again maybe it isn't the engine at all, maybe it is a heater motor?)
It is worth noting that when the engine revs up at speed the shake stops.
I've tried to record a video so you can hear the sound.
Thanks very much!!!
https://drive.google.com/file/d/1s_1RaUPHFUTWYwQOW7iMlB0zYJi-JQcL/view?usp=sharing
https://drive.google.com/file/d/1sK6TGEgDUl6p1xH4jLee_THShD73lwOM/view?usp=sharing