Car Keeps Shutting Off

[LORDDON]

BROUGHT 92 OLDS 98--DRIVES FOR 1/2 HOUR SHUTS OFF--TOOK TO GM SPECIALIST FOR CK UP SD IT WAS IGNITION MODULE-CHANGE IT STILL SHUTTING OFF--FUEL TUNE UP--STILL SHUTTING OFF-CHANGED CAM POSITON--STILL SHUTTING OFF???? DON'T KNOW WHAT ELSE TO DO??? ALTERNATOR ISGOOD--BELTS ARE GOOD--RADITOR IS GOOD.

HELP PLEASE AT WITS END!!!!!!!!!

[GTP Dad]

Crank position sensor!

[jennings41]

Originally Posted by LORDDON

BROUGHT 92 OLDS 98--DRIVES FOR 1/2 HOUR SHUTS OFF--TOOK TO GM SPECIALIST FOR CK UP SD IT WAS IGNITION MODULE-CHANGE IT STILL SHUTTING OFF--FUEL TUNE UP--STILL SHUTTING OFF-CHANGED CAM POSITON--STILL SHUTTING OFF???? DON'T KNOW WHAT ELSE TO DO??? ALTERNATOR ISGOOD--BELTS ARE GOOD--RADITOR IS GOOD.

HELP PLEASE AT WITS END!!!!!!!!!

I have an 1987 olds 98 with the same problem. runs fine for about 15-20min. or until it gets hot and stalls. it will start back up after 5-10min. and run for awhile but repeats. i have replaced the oxygen sensor, wires and plugs, ignition coil and ignition control module. still doing the same thing. if i get it figured out i'll let you know and same with you please. i'm banging my head too. thanks grant in san diego 858.395.6058

[GTP Dad]

Same answer! Crank position sensor.

[Elkfinder]

Had the same thing with my 91 olds
Crank sensor!!!!

[Elkfinder]

Theres 3 parts it could be if its electrical.
1. coil modules
2. spark control module
3. Crank Position sensor.
On mine I used a timing light to determine it was electrical first.

Hope this helps.