I have a 1994 pontiac Bonneville with a 3800 engine, 6 cyl...Recently it has started to give me problems with cranking It just turns and turns but does not crank up..the first time it did it I was thinking it was low in gas..but it is full now and it does it just on ocassions...

it mostly cranks good but every now and then i go out and it won't start out of the blue...mostly it happens when i have just gotten out of it then 30 minutes or so later it won't crank..but it does not do this all the time..today it happened but before this it has driven good for about a week with no problems...so I am guessing the problems only happen after it has been warmed....

but i have cranked it after it has been warmed so it happens on occasion after being just driven within the previous hour or so....I would appreciate any help with this...thanks

My guess would lie on either the CrankShaft position sensor, the coil packs, or the ignition module. (My car has had all 3 of those go bad before, and they all had the same symptoms exactly as you described.)

thanks for your quick reply to my problem..are these things easy to replace or is there a way to pin-point which it is?

Hey thanks Jr

they do sell these parts at autozone right?

thanks

Ever notice how the PITA parts are cheap, and the easy parts are spendy?

i just bought the sensor 40 bucks forit right from the dealership so you can prob get it cheaper elsewhere. thats canadian

ok Great!

Have you guys ever thought of it being the starter? It would explain why it'* starting some times and not others...there could be a bald spot in the starter where the teeth aren't grabbing...and when the car moves, the position of the teeth do too...so you could have worn a spot in the starter.