Hi My name is Melody,
I have owned a 2000 Tahoe for two years. I had an issue recently where the truck wouldn’t start and took it to the guys who change my oil, because a friend said they saw fresh oil by the oil pan. The car shop fixed what they said was a broken seal above the fuel pump and replaced the actual fuel pump. The truck worked for about a week and then wouldn’t start. I didn’t want to bring it back to the previous repair shop because I didn’t know them and suspected fraud. Needless to say, two weeks and a new starter later my truck will not start. We took the truck to a chevy dealer and they diagnosed the truck. The fuel pressure was low but no other apparent problems. The battery is good. I do not know what else to do. HELP ME PLEASE!!
You have to trust someone, and in this case I suspect you are better off with your local Chevy dealer. At least if they are wrong about their diagnosis, they will make it right. I would never go back to the mechanic you used. He almost certainly charged you for a part he never replaced, or at best he replaced the part with a used part.
My suggestion is to ask your friends, neighbors and coworkers for recommendations for a new mechanic.