Sometimes it won't start after being parked all night! It just shuts down while driving down the road, sometimes it will start back up instantly when I shift to N and turn the key, most times I have to pull off the road and wait for it to crank back up! Local mechanic can not figure out what is wrong with the car.
My 1st guess wd. be crank sensor
SOURCE: i have a 1999 buick regal ls dying.
I found the problem. It was the crank position sensor. There was also a cracked vacuum hose connecting to the diaphragm on the fuel rail. Replaced both and my 92 Buick no longer dies. For the guy who's Buick was dying when using the turn signals - replace the crank position sensor. One of my symptoms of my Buick dying was when I used my turn signals. Use of turn signals places a varying load on the electrical system which messes up the crank posistion sensor if it is going bad.
Bob
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My car is doing the same EXACT thing. The only difference is that after letting the car sit overnight, it starts right back up in the morning like there was never a problem. It randomly cuts off with no waning. Sometimes it starts right back up, and sometimes I have to sit and wait for up to an hour or so. As with you, NO mechanic is telling me the problem. The problem doesn't pop up with a diagnostic machine. Did you ever find out what was wrong with you car???
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