mechanic knowledge

Looking for some prayer assistance. Car broke down and is in the shop to be diagnosed. Need blessing to grant knowledge to the mechanic for a quick and easier repair with a reasonable repair cost. I give the matter to the Lord for His guidance and resolution. Please help me in my time of need.

Pray that the Lord give ### knowledge of why my car vibrates when it's at a stop sign, when it's on idle. I have paid a lot of money of the last few years to get my car fixed because it would put a great strain on me to buy a new car, financially. I need help with my old car!!!