1998 Pontiac Transport coil pack

Tiny
JTABER
  • MEMBER
  • 1998 PONTIAC TRANSPORT
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 15,700 MILES
We have a problem with a coil pack, we have codes p0121 and p0304 pr p0340, we know that it is one of the three coil packs that need replacement how can we tell which one?
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Saturday, June 20th, 2009 AT 6:55 AM

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Tiny
MERLIN2021
  • EXPERT
P0304 will be missfire on cylinder #4, follow the #4 plug wire to the coil pack, #4 coil is when looking from the front of the van, front right wire on the coil, and 1st plug on front of engine passenger side of the motor.
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Saturday, June 20th, 2009 AT 7:06 AM

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