Car Problem Reports

Buick LeSabre Engine Stalling Due to Mass Air Flow/Crankshaft Position Sensor Failure

Buick LeSabre Problem
125 Reports
Me Too

Model Years Affected: 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005

Average Mileage: 133,065 mi (40,000 mi - 300,000 mi)


The mass air flow or crankshaft position sensor may fail causing the engine to stall intermittently. Proper diagnoses will be necessary to determine the cause of any stalling condition.

  • , , 85,000 mi

    Stall occassionally...On Highway, on side streets sometimes within the first few minutes of running and other times you could have been riding for hours and suddenly it uts out.

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  •  Enthusiast

    car kept stalling, so i removed mass air flow sensor and cleaned it with maf sensor spray, i also replaced the idle air control valve after first checking for vacuum leaks.
    total cost iac valve $20 maf spray $5.
    sorry i forgot to update, the problem came back so i went online and brought a new maf sensor from for $100(using coupon code to save $25+) installed (takes 2 minutes) car has been great ever since. 16,000 miles later no problems with stalling. again buy the part yourself and install, if you can work a screwdriver you can do this, so easy.

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  • , , 170,000 mi

    Once or twice a day with no rhyme or reason car will stall. It stalls at slow speeds and highway speeds. sometimes I can put it in nuetral as I'm still rolling and start the engine again but usually I will have to pull over and wait about 15 min. before car will start again.

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  • , , 90,000 mi

    My LeSabre would stall out while driving. Sometimes it would start back up right away, and other times it would take 5 or 10 minutes of attempts. No warning lights ever came on, and the computer was not generating an identification code for the problem. Research pointed towards the crankcase sensor being a common problem, so I spent $200 to have it replaced. Hasn't died again since.

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  • , , 144,000 mi

    engine stalling, trans not shifting correctly,poor acceleration.
    had mass aiflow and map sensor replaced.

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  • , , 130,000 mi

    The engine just shut down today , its like its not firing

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  •  Rookie

    Does not show up on obd diagnostic. I was stranded too many times to count. The crankshaft position sensor is a$35 part and takes a shop under an hour to replace. Just do it before you end up repairing other things that aren't the real prob

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  • , , 63,000 mi

    when engine is run after sitting all night,after driving it for about 1 mile, the engine will make a popping noise like a misfire. I happens every day. thank you

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  • , , 78,000 mi

    Not fixed, currently being diagnosed. Intermitten stalling at slow speeds.

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  • , , 220,000 mi

    intermittent stalling...was mass overflow air sensor

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