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1995 Buick Lesabre stalling

Tiny
HONDAXL350
  • MEMBER
  • 1995 BUICK LESABRE
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 37,500 MILES
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?
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Wednesday, November 18th, 2009 AT 2:31 PM

1 Reply

Tiny
MICKEY-D
  • 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
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Monday, December 7th, 2009 AT 11:38 AM

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