1995 Buick Skylark Q&A

1995 Buick Skylark Question: my 95 buick skylark is backfiring and i changed coils and egr and checked wires.

shop has car and it is getting very costly.i have put in fuel pump,filter,egr valve,plugs wires.i am just about to let them keep the car.help me please.i need help. -
Answer 1
SOUNDS LIKE THEY ARE GUESSING ALSO, SEEK A 2ND OPINION AND DON'T PAY THEM. -