Cutlass supreme wont start

So your saying the trans gave up & is slipping?

Is that the question?

Wasn't sure which engine you had so here's a picture for both the 4 and 6 cylinder. I hope this helps.

Try pulling on it VERY SLOWLY if that don't work then you need a new belt.

remove the trim panel there should be two screws at the top remove that then remove the four screws holding the radio, then slide it out far enough to unplug antena wire and power and speaker connector, radio is out, hope this helps.

you should be able to get the door open with a lock bar...you can get them at your local auto parts store...and most police have them in there cars to help when someone gets locked out of there cars

try the throttle position sensor

If the belt you are talking about was in the condition you say it is, it is not the timing belt but the serpentine drivebelt. It is not difficult to replace and should be done asap before you run into a major problem. As far as I remember you have a timing chain inside your engine.,When replacing it, make a routing diagram or find the sticker that shows this before removing the old belt.Have someone at the parts store show you the tensioner and how to depress it to r&r the belt.

could be neautral safety switch ours does this and we have to pull it out of park and put it back into park or hold the shifter lever up while turning the key the sec light should go out if it starts. ours does.

its the starter

Remove your ground cable first. Then your positive. You will have a bolt at the bottom of the battery holding a clamp. Loosen the nut far enough to pull the clamp block up. Battery should pull out.