Hi all. I’ve been having problems lately with the Bonnie. Car has the regular 3800, no mods, and I run it on regular gas. Since I bought it, it would hesitate slightly when going up very large hills. I didn’t pay much attention to it, as it didn’t happen too often. A few months ago, she started missing badly. It turned out to be the ignition control module causing the heavy missing, but even after I replaced the module (I had to use a used junk yard module), the heavy missing has gone away, but the car is stating to stall when it feels like it. Usually, I am traveling slowly (20 KPH or less), but it has also done it at around 60 KPH. It just dies when it wants too. Power is fine, heater and everything works fine, but the engine just dies. At other times, I have watched the tach drop to zero, and actually heard the engine almost shut off (just as if someone quickly turned the key to Off, then back to On), but sometimes it doesn’t die. It doesn’t seem to matter what speed I am traveling, where I am traveling (inclines, declines, etc.), or even temperature. Usually, if I put it into Neutral, it will fire back up, and drive fine, but twice it has quit, and taken several minutes to re-start (starter just keeps cranking, but engine doesn’t start). I have replaced the plugs and wires (with Delco’*), changed the fuel filter, and am always “good” to the car. I can also hear the fuel pump coming on, and there are no check engine lights. My local parts man suggested the crankshaft position sensor (or the camshaft position sensor, I can’t recall which). Would either of these cause these symptoms? Could it be the ignition control module is bad again, seeing how it is a junk yard part? We really need the car to get back and forth from work, and the stalling is getting worse (happened 3 times today, on two different trips). Any suggestions? Thanks everyone.

the crankshaft pos sensor is one of the most popular reasons for your issues. but there are a bunch of other things that can cause stalling. loose or corroded wiring, grounds, fuses, relays etc..

Have you checked/cleaned your MAF sensor recently?

Crank shaft position sensor.

Thanks for all the replies. To Mike1995, what is the best way to clean the MAF? To Jwfirebird, it seems to be getting worse, and when she stalls out now, she doesn't want to start back up for a few minutes. There is no loss of actual power (radio, heater, etc. all still work) and the starter turns and turns, but the engine doesn't fire up for a few minutes. Does this change your opinion, or should I still have the cables all looked at?
Thanks again everyone. I really appreciate it.

now that you say that, it does sound more like the cps

Crank shaft position sensor. I feel it in my bones,

Thanks all, I appreciate the help. I will have the CPS changed, and report back with the results.
Thanks again!!

Make sure you have a crank relearn done after getting that CKP replaced, only takes a minute or so with a snap on scan tool, or Tech II, and a few others like HP Tuners..

The crank relearn is new to me. I don't have a decent scan tool, and neither does my mechanic. We only have regular OBD II code readers. Is there any other way to do the relearn procedure? Does it have to be done? What will it cause if not done? I'm starting to get worried now.