2004 Buick Lesabre Engine

8,000 MILES • 6 CYL • FWD • AUTOMATIC
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STEVE285
  • MEMBER
  • 1 POST
Engine shuts down, and restarts after short period
May 16, 2010 at 7:57 AM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,988 POSTS
Next time this happens -don't wait for nothing-Lets do below for a start to determine if its fuel or spark related issue and get back asap.

Get a helper disconnect a sparkplug wire or 2 and ground it to the engine atleast 3/16 away from ground-have helper crank engine over-do you have a snapping blue spark? If so-you have a fuel related problem, check the fuel pressure to rule out the fuel filter/fuel pump/pressure regulator and listen to the injector/s are they pulsing or hook up a noid light. No snapping blue spark continue to troubleshoot the ignition system-power input to the coil/coil packs,coil's resistances,distributor pick-up coil, ignition control module, cam and crank sensors and computer Note: If it doesn't apply disregard it
May 22, 2010 at 4:28 PM
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