I have had a few issues with the tach dropping to zero in the past, but it was no big deal because the car still ran fine.....
The next few times it would happen the engine would also stutter as it dropped to zero, but the car still ran fine after the initial stutter.
Now more recently the car has been dying randomly, and it is extremely random. It can go multiple days without issues and it happens in many different conditions. Sitting at a stop sign, going down a hill, doing a 10 mph left turn, and also with the car at full or almost full throttle. I shift into neutral and start it back up without any problems. And then the car will run just like nothing ever happened.
This last time it happened I was going down a fairly steep hill at about 65ish and I didn't notice if it stuttered or just died as if someone reached over and turned the key. But I am fairly certain that at other times in the past it stuttered and died.
But I am definitely leaning towards a bad crankshaft sensor because of the difference it made to fbody69'* car with the replacement.
Originally Posted by fbody69
Update; The car runs like new again. I would like to post the symptoms I had for the crank sensor; Intermittent stalling. No way to predict it. The car would almost always restart right away. On three ocasions in a year the engine took 5 minutes to restart. The car always ran good after restart. Tach drops to zero occasionally. One thing that was prominent was late shifting. Usually only when the car was cold, sometimes even when it was warm. Every day when I first took off it would stay in first until I let off and hit the gas again. After a couple miles it shifted fine most of the time.
I have to think that all of these symptoms were the crank sensor because they are all gone now that I changed it.
My problems are almost identical to this, and I think I may even have the shifting problem. My boyfriend has noticed on occasion that it doesn't seem to shift when it should or it would wait too long to shift. But that'* all I know about that.....no details....
So I guess my main questions are if I do the test
that Danthurs suggests and the crankshaft sensor does seem to be the culprit, Where is the best place to buy a new one and is it something that is easily replaced?