Always state year, model etc.. before you ask a question.
If I was asking a question about my truck I would start with..
" I have a 1994 ECSB K2500 5.7 4l60E."
Then everybody knows that I am asking about a 1994 extened cab 3/4 ton truck with a 5.7 litre TBI and a 4l60e transmission
Always start with that info.
If you dont know what you have, post some details and we will figure out what you are working on.
Pictures, vin numbers whatever.
You have to provide as much background as you can, and tell your story as well as you can, with as much detail as you can .