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Cylinder one misfire when starting warm

Tiny
TACOMACODY
  • MEMBER
  • 2000 TOYOTA TACOMA
  • 3.4L
  • V6
  • 4WD
  • MANUAL
  • 242,000 MILES
When I start the truck cold it starts up great and can run great as long as I do not turn it off. If I turn it off when it is warm and try starting it again while warm it will not fire on cylinder one. It has new wires, plugs, coils. I have been told vacuum leak, but would a vacuum leak effect all cylinders?
Help!
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Saturday, May 12th, 2018 AT 6:39 PM

1 Reply

Tiny
JIS001
  • MECHANIC
  • 3,408 POSTS
Here is an article that may help you diagnose your misfire:

https://www.2carpros.com/articles/engine-misfires-or-runs-rough

Performe these tests when the vehicle is warmed up to duplicate the concern. Let us know what the readings are please.
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Saturday, May 12th, 2018 AT 11:41 PM

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