I have a 1994 z28 with less than 31,000 miles.  I have 2 problems
which mechanics have "thought" they have fixed- first, the left turn
signal keeps blowing- I think it is a relay or short problem.  I can
make the front light blink by moving the turn stick up and down, but
not the rear light.

Second, whenever I turn on the air- the engine makes a high pitch
squealing noise and then the car dies if I don't turn the air off fast
enough.  I think it is a compressor issue.

Does anyone know how much it would cost to fix these to issues if you
can identify what is wrong with it cause I want to sell this car AS
IS.

Thank you!