I've been doing this for more than 30 years; automotive industry isn't what it used to be.
You have to keep up with ever changing demands, especially electronics, transmission, engines and drive-ability. You cannot afford to fall behind; if you do then you won't be making any money.
Right now it is bad time to become automotive technician.Nobody is making money. The economy isn’t that good and many people cannot afford to have their vehicles repaired.
There are few good Technical Schools but they aren’t worth a penny because I’ve seen student graduates from them and ‘expect” to make more than 18 dollars an hour, unfortunately, it doesn’t work that way. You have to start from the bottom and work your way up.
I've also seen them excel in tests and quizzes but failed miserably when it comes to fix the vehicles.
On top of that, many dealerships preferred technician that already has manufacture trainings, it is a lot more than basic certifications.
If you're GM certified tech, then good luck finding any job beside GM dealership. Ford won't hire you, Dodge won't hire you, and the list goes on and on or you can find a job in auto repair shop but most of them don't give you good pay and benefits.
Nowadays, good technicians are hard to find because most inexperience techs are just parts replacer, they really don't take their time and diagnosis any vehicle properly.
Example, Oxygen sensor codes, 99% of them [including internet expert] would simply replace oxygen sensor.
Good tech will interpret the code description and find out why and then fixed the problem.
Bottom line, good technician can easily make over 50k a year that because this particular tech has the will and motivation to keep up ever changing automotive industry.
If you have that attitude then go for it otherwise seek different job.
811111 General Automotive Repair
"This U.S. industry comprises establishments primarily engaged in providing (1) a wide range of mechanical and electrical repair and maintenance services for automotive vehicles, such as passenger cars, trucks, and vans, and all trailers or (2) engine repair and replacement."
that's why the online calculators are so nice..
Volume equals pie times the Radius squared times the stroke times the number of cylinders equals 467 rounded off.
that's using 0.030" over
Your sister must have been hot dogging the car Driving it like a maniac. Looks like the head gasket is fried which mean your out some money rebuilding to top half of the engine Also your timing belt is fried or close to it, and oil is spewing all over the motor. You sister fried your motor From what it sounds like you rods or lifters are bad or bent a valve
which is in the head The tapping is the lifters or rods or values Either way its an top end rebuild 06 will be expensive
I would take it to a shop But I am pretty sure your head gasket is blown Can you drive it ? Well technically yes But only for absolute emergency because once it completely goes, your out a motor and cost is based on year The car might not be worth it This is the number one reason why I don't loan out my cars to friends or family EVER. Better start asking what your sister did besides cost you a 1000 bucks in engine repairs
It will cost you roughly 50 to 100 dollars depending where you get the parts, as for driving it to get the parts,I wouldn't go get the parts with it.You see when water gets in the main bearings, it can damage the entire engine and that can get expensive. To do the job yourself, you will need the Haynes or Chilton manual for the torque specifications of the head(s). You need a torque ratchet and about 6-12 hours of work time to do the job right,It'll save you about 200 dollars
This you shall find behind the metal nozzle coming out of the cylinder head where the upper radiator hose mounts to the engine. It should be held inplace with 2 bolts. When replacing ensure that the old gasket has been throughly removed from both the head and the nozzle.
Install the new thermostat in the cylinder head, with the valve end first and the subvalve (air bleed valve) at the top.
Lightly coat both sides of the new gasket with gasket sealer.
New gasket and tighten the bolts to 15-19 ft lbs.