The person who repairs your car is called a mechanic.machinate
A person who makes and repairs guns
a mechanic or technition
A mechanic, or motor mechanic, or car mechanic.
A seamstress is a person that makes, repairs, and does alterations to clothing.
A wheelwright is a person who makes or repairs wooden wheels.
Luthier.
A person who makes and repairs wagons and carriages is called a Wainwright. A wheelwright makes wheels.
Luthier.
A gunsmith makes and repairs guns.
A Shoe Druggie...?
everything on a car can be repaired, what makes repairs expensive is the cost for materials and how hard it is to do the job