I think your starter may be "Stuck" or "Rusty" There are only 2-3 wires (depending on model, mines a burban with 3 wires) & 2 bolts 9/16 I belive then it falls out gently into your hands pulling the bottom out towards the rear of the truck, & there is a freeze plug there sadly.
I have replaced this before in a 89 IROC (Went out the same day I bought it, 6 -7 hours into racing it around town...Good Times..Good Times) But it was the one behind the tranny which was a pain in the A**.
Depending on how comfortable you feel You CAN take it out & put a new one in,
Tap out (DRILL) the middle a bit (Use the tiny pin hole as a starter, getthe hole big enough to get somthing in there to PULL & PRY it out.
DO NOT LETTHE PLUG FALL IN OR ANY LARGE PIECES OF METAL (**Note before you put the new plug in just fill the car with water & let all the shavings fall out..Piece O' Cake.
Take your time pulling it out the metal is soft from the rust. You may have to knock one end in the block while pulling the bottom out. Use can use a hacksaw blade to cut through the plug just dont go all the way through as you could damage the wall & cause a leak that cannot be fixed without some $$$. So just use the hacksaw to cut into the cap NoT through it.
Once you get it out drink a beer Have a smoke then have your friend crawl under there with you & guide the new plug in (it will payoff in the end to have someone else making sure its going in correctly)
Just use a socket the same same as the inner size of the plug and TAP it in untill its flush with the block. (You will have to hit it pretty good to get it started so give yourself room to swing the hammer comfortably.
Get a new starter & Clean all you contacts (Ground & Starter Connection..Rough them up & make them shiny for good contacts)
Tuesday, March 4th, 2008 AT 2:37 PM