3800 Series II stutter and stall, any ideas?

S

skeensa1

Newbie
I have a 98 Buick LeSabre with 150,000 miles. It has been a great car.
Recently, I started having the following problem.
About half the time the car seems to run fine. The other half of the time the car will stutter while driving almost as if the engine completely shut off for a second and then it will surge. When it's doing this, it often dies upon stopping at a red light or at very low speeds while turning. The strange thing is, it will act like this on a trip to the store, but after coming home and letting the car sit for a few minutes, it will start up and run just fine again.
Any ideas?
Are these the symptoms of coolant leaking into the intake manifold?
 
same problem

I'm having same problem with 91 regal. My first thought was the Crankcase Position Sensor, but car is not throwing codes. The car has a leak. I replaced the water pump. Still leaks. Now I'm thinking intake manifold gasket, but I'm not sure if that could cause the problem I'm having. Did you ever figure it out.
 
I ran into a similar problem, turned out it was a loose coil pack mounting bolt. Also check your maf connection and see if it is loose or melted.
 
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