Intermitment starting possibly due to security code in key

Possible internal starter motor problem. If the battery is good, try tapping on the starter while someone holds the key in the crank position. If the vehicle starts, the starter motor will need to be replaced

Defective starter motor or no power to it. You can try tapping on the starter motor with a blunt object while holding the key in the crank position to see if it starts

Possible defective starter motor. Try tapping on starter motor with a blunt object ( if accessible ) while holding the key in the crank position. If the engine starts, the starter motor is bad. If it doesn't, you will have to check for start power at the starter directly. Possible starter motor/starter relay/ wiring/ignition switch etc

This may be related to the antitheft system The system is known for turning off the starter and/or injectors when it fails. Is there a light on the dash that says SECURITY? This is a common problem worth looking into. http://www.diy-gm-security.com/

It's entirely possible that it is the starter itself. You probably wouldn't hear any kind of noise from a bad starter. If it's at a shop and that's what they're telling you, I would believe it. The starter can easily be tested with a simple test light. It's only got 2 wires going to it, one large and one small. The large wire should have 12 volts all the time, the small one gets 12 volts when you try to start.
The starter is located more or less under the battery on the front side of the transmisision.
Best of luck;

Could be your starter. If you turn it and it doesn't crank, should be the starter.

If the battery is good, I would still say it is the starter that is causing the problem. Some new or recondition starters fail prematurely. If it is the original starter it is probably due for replacement...roughly 300 bucks.

if it truly is a key issue and you got a new key you still need the key programmed with the computer

sounds to me like you need a new tech

you should find the right answer the FIRST time at your caddy dealer!!!

THIS IS MOST LIKLY DUE TO A FAULTY ELEC. CONNECTION TO THE STARTERS POWER

1999 Saturn SC1 wont start. Was able to in neutral, but not now. I did change the neutral safety switch, was not the problem. Any idea's?