Code P0300 when it rains

Tiny
VANESSA VILLAGRANA
  • MEMBER
  • 2004 CHEVROLET TAHOE
  • V8
  • 2WD
  • AUTOMATIC
  • 185,000 MILES
Has anyone ever experienced a misfire when it rains and the check engine light turns on and gives code P0300? This only happens when it rains.
Thursday, March 12th, 2020 AT 8:45 PM

1 Reply

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Good morning,

Good chance the wires are getting wet and they are leaking out electricity. They arc and the plugs do not get the full amount of voltage to the plugs.

Roy
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Friday, March 13th, 2020 AT 2:49 AM

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