trash the motor, buy a rebuilt. if you got less than 70,000 miles, it might be worth trying to fix, but a rebuilt will probobly have more power than anything with 100k+ anyway. cost you $1000 bucks.
Bad plug? Bad wire? Bad piston or valve (do a compression test)
asdasd
it could either be your thermostat is bad, the radiator is bad, or you could have a blown head gasket.
no
yes
If you have a 4g63 motor a common problem is crankwalk, this will damage or break off the sensor.
Yes
NoNo
No it will not.
Yes with a few sensors changes.
Piston rings are always installed with the numbers up toward the top of the piston
The car needs a tune-up, or the motor mount(s) are bad.