Car Will Not Start problems of the 2002 Buick Rendezvous

Restarting and delayed start on 2002 Buick Rendezvous. Only 7/1/05 stopped to fill gas tank. After refill, the car started and may have moved no more than 2 feet. Shut off and wouldn't re-crank for at least 15 minutes. On 7/5/05 took the car to master pontiac in augusta, GA for diagnostics and they could not find anything that could have caused the problem. On 7/17/05, husband was driving the car. Took some friends home, shut the car off for 5 minutes. Tried to restart and car could not start. They tried for several hours before they had the car towed to master pontiac augusta georgia. On 7/18/05 the car was started immediately at the dealership. They could not find anything wrong with it. On 7/22/05 again at a gas station the car would not start after refilling. Had to push it out of the way and wait 30 minutes before it would start again. On 7/23/05 (Saturday) called master pontiac and told service manager about the night before incident. He stated that the next time it happens to call them immediately. Though I truly appreciate the offer, I personally don't see how this will help, since they immediately will try and start the car and sometimes all you have to do is wait 15-30 minutes before it will restart. Master pontiac has been very helpful, but unfortunately nothing can be found. I supplied the service manager with a listing of other complaints from edmunds forum to show them I'm not making up this problem. This is very frustrating especially when you do not know when the problem is going to happen. This is unsafe for mothers with small children. It's unsafe for anyone. There are numerous complaints regarding this on edmunds forum and something must be done. In addition to the above not starting problem, the car will 80% of the time have a slow start when cranking. Something is definitely wrong. The question is what.

2002 Buick Rendezvous 3. 4 engine would not start after travelling approximately 200 miles and ignition was turned off. Check engine light did not illuminate at any time during travel. Engine water temp. Was normal. Gasoline consumption was 1/2 tank. Engine would turn over but would not start during 45 minute try. Vehicle towed for 50 miles to gm dealer. After being towed, vehicle let down from tow truck and started with no problem. Engine continued to operate normally for remander of trip, approx. 50 miles. Vehicle continues to start normally. Did not have dealer diagnose problem.

Car stalls while driving, or car will not start when left parked for minutes. Car was towed to local dealership 3 times during may 2004. It has happened on other occasions prior to may 2004, but only sporadically. Dealership can not duplicate or locate problem and keeps returning the car to me. Buick customer service will do nothing to help me. This car does not qualify for the lemon law because they can not find anything wrong with it.