I car is facing rough idling. So, I want to clean the throttle body. On the internet, I have found that I can use WD-40 to clean the throttle body.

Is it harmful to the engine, if I use WD-40?

I found the information here 6 Common Dirty Throttle Body Symptoms - Auto Parts Guideline

Looking for an experts opinion.

TIA.

 

Use something labeled throttle body cleaner. Open throttle plate to also spray behind area.

Let soak.

Use a toothbrush to scrub the area.

Clean up with cloth, etc.

Search under "cleaning throttle body Camry"