pep boy is cheap, but not so trustable. a better place is Struss (might be wrong spelling), or if you do really want to spend money, go to Midas.
if you can find some Chinese garage, that should be the cheapest.

什么车车?什么毛病哈?不能找dealer吗?

dealer管修车吗
我的车是nissan sentra
毛病在我的
另一个贴子中说过

问问你旁边的同学吧，看有没有local mechanic，不一定要找像pepboy, midas, 这类的连锁店。有些美国人开的修车铺还是不错的，dealer那是宰人的，旧车去dealer修很划不来。

it seems ok