# Car stalls out at about 20 mph **URL:** \ **Category:** Maintenance/Repairs\ **Tags:** lesabre, buick\ **Created:** [March 26, 2015, 2:26am UTC](https://community.cartalk.com/t/car-stalls-out-at-about-20-mph/89434 "2015-03-26T02:26:10Z")\ **Posts on this page:** 11\ **Page:** 1
**Author:** ![N81](https://avatars.discourse-cdn.com/v4/letter/n/ee7513/32.png) [@N81](https://community.cartalk.com/u/N81)\ **Post date:** [March 26, 2015, 2:26am UTC](https://community.cartalk.com/t/car-stalls-out-at-about-20-mph/89434/1 "2015-03-26T02:26:10Z")
I have recently noticed that my car will stall out when I get up to about 20 mph. My car starts fine, no check engine light on. I has a tendency to just die in the middle of the road at times too. I have changed the spark plugs, spark plug wires, and a new fuel filter. Do I need to change the mass air flow sensor? Or the crank position sensor? I have no problems starting the car either. Runs good when it runs. ---
**Author:** ![N81](https://avatars.discourse-cdn.com/v4/letter/n/ee7513/32.png) [@N81](https://community.cartalk.com/u/N81)\ **Post date:** [March 26, 2015, 2:26am UTC](https://community.cartalk.com/t/car-stalls-out-at-about-20-mph/89434/2 "2015-03-26T02:26:46Z")
I forgot to mention that it is a 1994 Buick LaSabre. ---
**Author:** ![VDCdriver](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/vdcdriver/32/30_2.png) [@VDCdriver](https://community.cartalk.com/u/VDCdriver)\ **Post date:** [March 26, 2015, 2:36am UTC](https://community.cartalk.com/t/car-stalls-out-at-about-20-mph/89434/3 "2015-03-26T02:36:14Z")
Have your mechanic check to see if the Catalytic Converter is clogged. ---
**Author:** ![system](https://global.discourse-cdn.com/cartalk/original/3X/1/d/1d47c66a543aa6c5a7873bb2320858f978ff52ed.png) [@system](https://community.cartalk.com/u/system)\ **Post date:** [March 26, 2015, 2:39am UTC](https://community.cartalk.com/t/car-stalls-out-at-about-20-mph/89434/4 "2015-03-26T02:39:22Z")
Does the buick make any noises or jerking before it dies? ---
**Author:** ![MY\_2\_CENTS](https://avatars.discourse-cdn.com/v4/letter/m/22d042/32.png) [@MY\_2\_CENTS](https://community.cartalk.com/u/MY_2_CENTS)\ **Post date:** [March 26, 2015, 3:13am UTC](https://community.cartalk.com/t/car-stalls-out-at-about-20-mph/89434/5 "2015-03-26T03:13:03Z")
Does it start right back up after it stalls and if it does, does it idle ok? ---
**Author:** ![George\_San\_Jose1](https://avatars.discourse-cdn.com/v4/letter/g/e5b9ba/32.png) [@George\_San\_Jose1](https://community.cartalk.com/u/George_San_Jose1)\ **Post date:** [March 26, 2015, 4:40am UTC](https://community.cartalk.com/t/car-stalls-out-at-about-20-mph/89434/6 "2015-03-26T04:40:33Z")
I can envision what you mean by it stalls at 20 mph, but what do you mean by it dies in the middle of the road? Are you going 20 mph then too? Or idling at a stop light? ---
**Author:** ![BustedKnuckles](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/bustedknuckles/32/25_2.png) [@BustedKnuckles](https://community.cartalk.com/u/BustedKnuckles)\ **Post date:** [March 26, 2015, 4:53am UTC](https://community.cartalk.com/t/car-stalls-out-at-about-20-mph/89434/7 "2015-03-26T04:53:12Z")
Check and clean the throttle body and the idle air controller motor (IAC). At over 20 years old, if it’s never been done, it probably needs to be. ---
**Author:** ![insightful](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/insightful/32/2732_2.png) [@insightful](https://community.cartalk.com/u/insightful)\ **Post date:** [March 26, 2015, 5:24am UTC](https://community.cartalk.com/t/car-stalls-out-at-about-20-mph/89434/8 "2015-03-26T05:24:40Z")
IF it only stalls after the engine is fully warmed up, I’ll go with the crankshaft position sensor. ---
**Author:** ![auto-owner](https://avatars.discourse-cdn.com/v4/letter/a/50afbb/32.png) [@auto-owner](https://community.cartalk.com/u/auto-owner)\ **Post date:** [March 26, 2015, 5:27am UTC](https://community.cartalk.com/t/car-stalls-out-at-about-20-mph/89434/9 "2015-03-26T05:27:43Z")
Will it rev up normally if it’s in neutral? ---
**Author:** ![Laresource](https://avatars.discourse-cdn.com/v4/letter/l/3d9bf3/32.png) [@Laresource](https://community.cartalk.com/u/Laresource)\ **Post date:** [April 4, 2015, 7:07pm UTC](https://community.cartalk.com/t/car-stalls-out-at-about-20-mph/89434/10 "2015-04-04T19:07:19Z")
Hi Nate, My car, a 95 Buick Lesabre, was having the same problems when stalling. When I took it to a mechanic they replaced the sensor array which was located in the wheel hub. They had to replace the entire hub however and not just the sensors. The problem stopped. But after the long winter it seems to have started again. Also during and after the hard winter here in Boston it has problems starting up after cold nights. I have to hold the throttle for about 7 minutes before I can get it to idle. I believe these are two different problems as you had demonstrated in your situation. ---
**Author:** ![db4690](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/db4690/32/2583_2.png) [@db4690](https://community.cartalk.com/u/db4690)\ **Post date:** [April 4, 2015, 11:34pm UTC](https://community.cartalk.com/t/car-stalls-out-at-about-20-mph/89434/11 "2015-04-04T23:34:23Z")
“sensor array which was located in the wheel hub” What the heck does the wheel speed sensor have to do with stalling out . . . ?! Sounds like somebody was in over his head, and was grasping at straws