Got a flashing service engine soon light

Tiny
ANONYMOUS
  • MEMBER
  • 2002 CHEVROLET TRAILBLAZER
  • 175,000 MILES
Got a flashing service engine soon light. Manual says it is a misfire. Waht do I do?
Thursday, February 28th, 2013 AT 12:35 AM

1 Reply

Tiny
HOMER1967
  • MECHANIC
  • 875 POSTS
The flashing light indicates that there is a catalyst damaging missfire going on. Do not drive the vehicle, you can wipe out your catalytic converter. You have to determine what cylinder or cylinders are missing and why. It could be anything from a plug, to a fuel injector.I will say this these engines have a huge amount of distributor cap and rotor issues that cause all kinds of crazy missfires.I would start by checking the distributor cap and rotor for corrossion and wear.
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Thursday, February 28th, 2013 AT 1:00 AM

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