not a mustang problem, but need some help...

1991vert

10 Year Member
Feb 27, 2004
1,103
7
69
Ludlow, MA
car is a 94/95 pontiac bonneville

so my girlfriend's bonneville just dies randomly at any RPM while idling or driving. it's happened before on the highway and i dont want her to freak out and get into an accident because of it.



just before the car dies the check engine light flashes and it dings 3 times. silimar sound to that of a courtesy chime (when the doors are open and the key is in) but it's faster. the car will also start right back up as if nothing happened.



i pulled each plug off of the coil pack and post/wire #5 was all corroded. i had her start the car up and there was still spark arching from the post to the wire.



a car needs 3 things: fuel, air, spark. im convinced it's not the pump because the car will start back up and run fine. im not sure about the spark - can coil packs go bad, but still run? and i haven't checked the air filter yet. could it be the fuel filter?



i dont want to go throwing money at problems.



also where is the harness to read the codes from the computer?

thanks
 
If the car is OBD-II, the plug is probably near your right knee as you sit in the driver seat.

Pull codes before doing anything. That old air, fuel spark adage is true but still requires more insight (you can have spark, but it might be way out of time; you can have fuel pressure but your pump might not flow as much volume as needed, etc).

The guys on the Bonneville site will know the common failure items (like how we know about our TFI's, headlight switches, etc).

Good luck.
 
do you know any of those sites by any chance? this problem is getting old real fast. we're supposed to take her car to go fishing today and it better not ruin our fishing trip! :mad:

thanks for your insight