Mechanics are pretty big on youtube, i learnt this type of diagnosis from https://www.youtube.com/@JimmyMakingitwork https://www.youtube.com/@JimmyMakingitwork

Mechanics are pretty big on youtube, i learnt this type of diagnosis from https://www.youtube.com/@JimmyMakingitwork https://www.youtube.com/@JimmyMakingitwork . He posts daily videos of life in the workshop, so the OP would of saved himself some time if he viewed! Repairing your car is just like programming, mechanics come in many varieties too.