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2003 Dodge Ram Ram 1500 4.7L cylinder miss fire

Tiny
ORDEP
  • MEMBER
  • 2003 DODGE RAM
  • V8
  • 2WD
  • AUTOMATIC
  • 122,000 MILES
I recently had the spark plugs replaced, then it started acting up so I took it to get a computer diagnosis it said it was a miss fire in cyliner 8 so I took it to the dealership the said all the coils, and injectors were good, and that there was good pressure in that cylinder but that it could be the computer or wiring harness. I just dont understand how a simple spark plug change could throw it off
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Thursday, January 14th, 2010 AT 8:33 PM

3 Replies

Tiny
BMRFIXIT
  • MECHANIC
  • 19,053 POSTS
Recheck and make sure you have the correct spark plugs and its correctly gaped
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Thursday, January 14th, 2010 AT 8:51 PM
Tiny
ORDEP
  • MEMBER
  • 2 POSTS
I did I have champion and theyre gapped at.40 like they told me at autozone
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Thursday, January 14th, 2010 AT 8:55 PM
Tiny
BMRFIXIT
  • MECHANIC
  • 19,053 POSTS
For V8 4.7 L
Champion Double platinum 7318 .040"
Champion Iridium Plug 9202 .040"
Champion Single Platinum 3318 .040"
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Thursday, January 14th, 2010 AT 9:46 PM

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