It could be a misfire. By any chance, does the check engine light flash when you feel this? Also, does the check engine light stay on when the engine is running?
If it does, you need to have the computer scanned to identify diagnostic trouble codes related. Here is a quick video showing how it's done:
I realize most people don't own a scanner. However, most parts stores will do it free of charge. This is where we need to start.
If possible, have that done, and let me know what codes are found.
I hope this helps. Let me know if you have other questions.
Take are and God Bless,
Monday, February 22nd, 2021 AT 5:40 PM