ok, i admit that i dont know a lot about cars in general. but i have a 2000 chevy s-10 2.2 with 77,000 miles. about two months ago the "service engine soon" light came on, and then went off the next day. this happened about once a week until last week. since then it has stayed on constantly. it drives the same, except lately it is very loud when over 70 mph.
so to make a long story even longer. is their a way that i can find out why my light is on without paying someone $75 , just to hook it up to a computer?
thanks.