Engine stalls intermittently while driving

2001 BUICK REGAL
Avatar
GARYAE
  • MEMBER
  • 1 POST
Six cylinder front wheel drive automatic 150,000 miles.

I have the LS model with 150,000 miles on it (lots of highway driving). Here is my problem; Car starts good and runs fine, but sometimes the car stalls while driving usually when coming to a stop sign or slowing down. It will also stall at idle some times. It always starts. There are no error codes. I have replaced the fuel filter and the fuel pump but the car continues to stall. Any help you can provide would be greatly appreciated.
Aug 21, 2009 at 10:38 AM
Advertisement
Avatar
JACOBANDNICKOLAS
  • CAR REPAIR CONTRIBUTOR
  • 110,190 POSTS
Have you checked for vacuum leaks?
Sep 4, 2009 at 8:16 AM
Avatar
TAKECHARGESARGE
  • CAR REPAIR CONTRIBUTOR
  • 92 POSTS
Hi GARYAE,

The crankshaft position sensor will cause the engine to stall without warning and yet there is not a trouble code registered on the computer. It will act as if someone turned off the ignition switch.

The cause is most likely high resistance in the sensor circuitry due to heat-sinking. The incidences should be happening at about the same amount of run time so it might happen in any driving condition. Mine was happening at about twenty minutes.

I have not had a stalling problem since changing the crankshaft position sensor. (Three years)

Good Luck,

TakeChargeSarge
Sep 21, 2009 at 1:09 AM
Avatar
SCOTTC622
  • MEMBER
  • 4 POSTS
Wow! sounds like your talking about my car, my 2002 Regal did the same thing it turns out the mechanic found that it was my ignition switch. if you do not do anything about it (which i did) it will get worse and when you try starting it, it will sound like your over starting it because you will hear a loud metal scraping and then it will mess with your instrument cluster and temperature control lights when starting it. just to double check when your car shuts off does it quit running and then the dash lights come back on immediately after stalling? if so it is your ignition switch. i would look into it either way.
Sep 29, 2009 at 5:08 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.