Where do I gain more knowledge of car repair?

[Exodus_2pt0]

Kind of off-topic but not really:
Don't I actually have to work in a shop to get my certification?

I'm a Mechanical Engineer but would like to have the cert just to learn more and to put on my resume.

Technically, yes. You at least need 2 years experience in a shop in order to become certified.

[razorcobra]

Just avoid harbor freight and anything made in China and are you probably ok. I really like USA-made craftsman stuff and Snap On is always quality. If you go to sears you must look carefully at the tags. 90% of their craftsman is made in China, then the spendy stuff all locked up is USA made and far superior.

http://www.amazon.com/Crescent-170-Piece-Mechanics-Tool-Set/dp/B000LWAX2C/ref=br_lf_m_1000901861_1_1_ttl/189-3580886-8500549?_encoding=UTF8&s=hi&pf_rd_m=ATVPDKIKX0DER&pf_rd_s=center-3&pf_rd_r=0KVPRJF0R0Q01ZK0RFJK&pf_rd_t=1401&pf_rd_p=1515127462&pf_rd_i=1000901861

Are these tools what you're talking about? ^