Hello,
You probably have oil in the spark plugs. Is the spark plug covered with "dark" fluid?
Usually if there is a leak in the valve cover gasket, oil can leak into the plugs.
Are there any trouble codes?
https://youtu.be/ahK_eucFi-k
Here is an article you might find helpful:
'
https://www.2carpros.com/articles/how-to-tune-up-a-car-engine
https://youtu.be/9M6xWMMRe0E
I have attached spark plug replacement as well and valve cover gasket replacement.
Let me know if you have any questions.
Thank you.
Images (Click to make bigger)
SPONSORED LINKS
Wednesday, July 14th, 2021 AT 1:01 PM