Ok, so every thing is Fixed but now i got a new problem.

my maintenance light flashes on startup, and when im at a red light and Only in a Drive gear my car like skips/hickups does not do it in drive. purrrs like a kitty kitty. and it dont do it driving normaly. also, i need new front break pads. guy helping me pressed my caliper piston back in with break pad still in place with a C clamp... like a noob. i dunno. i need help its not only and a to b car, but i also have to make runs in it for work. pick up laptops/printers/and other computer related items....

(i work 2 jobs, NSI beck and associates, and Advance auto.)