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Codes 26 & 27 show up as a short on cylinder 3

Tiny
ASHLEY.BAIN80
  • MEMBER
  • 1989 DODGE DYNASTY
Misfires bad has new plugs and wires, good fire to all cylinders but 3 would that be cap and rotor? New plug, wires, and fuel filter
Monday, January 2nd, 2012 AT 3:10 AM

5 Replies

Tiny
RIVERMIKERAT
  • MECHANIC
  • 6,110 POSTS
Check compression. It should be well over 100 PSI and not vary by more than 15% highest to lowest.
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Monday, January 2nd, 2012 AT 3:11 AM
Tiny
ASHLEY.BAIN80
  • MEMBER
  • 3 POSTS
Ok, if it low or high what would the soultion be
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Monday, January 2nd, 2012 AT 3:18 AM
Tiny
RIVERMIKERAT
  • MECHANIC
  • 6,110 POSTS
If the compression is low in one or more cylinders, put about a teaspoon of light oil into the cylinder and check again. If the compression comes up, you have bad piston rings. If not, you most likely have bad valves and either need to replace one or both, or need to have a valve job performed.
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Monday, January 2nd, 2012 AT 3:33 AM
Tiny
ASHLEY.BAIN80
  • MEMBER
  • 3 POSTS
Ok thank you and do you think the cap androter can be bad and would it cause this problem also
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Monday, January 2nd, 2012 AT 3:36 AM
Tiny
RIVERMIKERAT
  • MECHANIC
  • 6,110 POSTS
Yes, the cap could cause a problem like this.
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Monday, January 2nd, 2012 AT 3:56 AM

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