Hello,
It sounds like you might have an issue with the idle air control valve (IAC).
When the IAC goes bad it can impact the idle of the vehicle. Many times it will idle unusually high, other times it will barley idle as the air flow through the IAC becomes inconsistent.
https://www.2carpros.com/articles/engine-idles-too-high
Try servicing the IAC. As the IAC gets dirty overtime due to large air particles sticking to the inside of the valve.
https://www.2carpros.com/articles/idle-air-control-valve-service
I have attached diagrams for your reference.
Please let me know of any questions.
Thank you.
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Wednesday, August 25th, 2021 AT 11:35 AM