Stalling Due to Mass Air Flow or Crankshaft Position Sensor Failure on Buick Regal

Problem Description and Possible Solution

The mass air flow or crankshaft position sensor may fail causing the engine to intermittently stall. It may be necessary for the engine to cool down before it will restart.

Problem Data
RepairPal Verified
Average mileage: 156,928 (68,000–287,000)
Engines affected: 3.1L V6, 3.8L V6, 3.8L V6 Supercharged
13 model years affected: 1991, 1992, 1994, 1995, more1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004
76 people reported this problem
Viewing 1 - 20 of 25 comments
while driving down the road the car would just shut off, and i would have to wait for a few minutes before it starts again
Car would shut off randomly, at first only after it had been running for a while, but it got worse and would stall any time/at least twice per day. Replace mass air flow sensor 3 days ago, hasn't stalled since.
Car stalling repeatedly, suddenly and without warning or sluggish performance. No DTC codes found with Actron Scan Tool. Had shop run tests, they recommended either MAF and/or CPS replacement. Replaced MAF myself, but stalling continued; then ran code scanner again, and popped P0336, stating pending CPS problem. Considered this definitive proof of cause of stalling. Scheduled CPS replacement.
Car dies varies times no special speed or RPM Finally security light comes on, pointing to the key and/or ignition switch. Traded to wife's original, seldom used key After the three minutes, car started drove the 1800 miles home with no more problems. Buick dealership wanted to replace crank sensor at $200. Maybe a good guess generally. The key is just another thing to check. Book also suggested just clean the key. At the 240000 on the 7000 mile trip the 3.8 did not require any added oil and still gets from 29 to 31 MPG at freeway speeds. Finding it hard to replace with a new car.
intermittent killing now wont start cleaned mass air flow no longer pull up code for maf

just replaced crankshaft position sensor....problem more MAF code either
Every time I step on the brakes during a hairpin turn entering or exiting the Pkwy my car stalls out. Sometimes when I stop at traffic lights or stop signs my car cuts off. While I'm on the Pkwy doing 40 to 45 mph my car feels like it wants to stall out. When I'm doing 65 to 70 mph I have no problems.
Car runs fine until putting signal light on to turn right. Car will sort of stall - all lights on dash come on and then car will suddenly restart on own. Sort of a glitch in power.Does not happen every time
Car didn't stall, but rpms would bounce from 500-1300 at idle. Car previously had a steady idle of 1000 rpms prior to MAF sensor failing.
Car stalls, all dash lights come on. The tachometer bounces, drops down prior to stall. Turns over but won't stay running
Had to have new sensor put in car after having it stall 3 times while on my way to work.
car runs at low speed <35 mph without a problem. However, when it runs at high speeds it shuts down. It will restart after several hours, but will shut down again.

Coils are good, spark plugs good
Car started dying if I wasn't actively giving it gas. Cleaned the MAF sensor and it ran for a while then started dying again. Ended up replacing the sensor and car ran well for about 6 months, now dying again. Guess it's time to clean the sensor once more.
1 mechanic said $290.fix/replace? But it was fix in 7/2016 with a warranty & I went & fixed by cleaning it within 15 mins!? Women get ripped off!?