1995 Buick Lesabre stalling

1995 BUICK LESABRE
37,500 MILES • 6 CYL • FWD • AUTOMATIC
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HONDAXL350
  • MEMBER
  • 1 POST
I am master mechanic working on a 1995 Buick Lesabre. It will stall intermittantly just like you shut the key off. It is not setting any code. When this happens, I can watch data on Tech 2 (scanner) & it will loose communication with the ECM every time it stalls. Also, the volt & SES lights may or may not flash & various relays energize & de energize (some times repeatedly at various intervals). Therefore I do not believe it is a sensor problem. I have tried a new ECM as well as adding jumper circuits for the power feeds & grounds. Nothing seems to work. Any ideas??
Nov 18, 2009 at 6:31 AM
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MICKEY-D
  • ✓Experienced Mechanic
  • 304 POSTS
If that model has a plug in junction block that goes through the firewall, pull it apart and check for corroded pins, or a possible broken wire making an intermittent contact. Also check any under hood fuses for corrosion. Good luck.
mickey-d
Dec 7, 2009 at 3:38 AM
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