Mazda 626 running rough 1999

Tiny
LDUNCAN4
  • MEMBER
  • 1999 MAZDA 626
  • AUTOMATIC
WHY WOULD THE EXHAUST SYSTEM GET BEAT RED WHEN RUNNING? What could be causing this?
Sunday, December 19th, 2010 AT 3:22 AM

1 Reply

Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
A misfiring cylinder would cause that. When misfiring occurs, excessive fuel is being discharged to the catalytic coverter and this would result in it glowing red hot.

Check the spark plugs and related components.
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Sunday, December 19th, 2010 AT 10:52 AM

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