Intermittent stalling

GENERICUSERNAME

MEMBER
1998 BUICK REGAL
3.8L
V6
2WD
AUTOMATIC
129,000 MILES

My car listed above is an LS model. It has been having intermittent stalling as the title states. The conditions have been a bit inconsistent, normally when driving between 25-45 MPH, the motor will completely stall. No stuttering or loss of power, just cuts out. When it does, dash is still fully functional and all electronics are active, but power steering cuts out as well with the motor. Motor is a 3800 II, FWD with 129,000 miles. I've checked through other similar questions and not found a match to my situation yet. Though I've tried suggestions I've seen for others from updating spark plugs and wires, to checking vacuum lines, and intake manifold/throttle gaskets. Any help would be appreciated.

1 Reply

KEN L

MASTER CERTIFIED MECHANIC
47,690 POSTS

This sounds like the crankshaft angle sensor or the fuel pump has gone out. when you turn the key to the on position without cranking the engine over can you hear the fuel pump run in the tank for 5 seconds? These guides should help us fix it. When it stalls can you hear the fuel pump still running? if so the location of the cranks sensor is in the diagrams below.

https://youtu.be/dCjmRL3p4Cs

and

https://www.2carpros.com/articles/car-cranks-but-wont-start

Also, lets run the codes to see what come up.

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

Check out the diagrams (below). Let us know what happens and please upload pictures or videos of the problem.

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