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1997 Cadillac EL Dorado Spark plugs misfiring

Tiny
DERAY40CAL
  • MEMBER
  • 1997 CADILLAC ELDORADO
Engine Performance problem
1997 Cadillac El Dorado V8 Automatic 118000 miles

My car started running rough so I got a diagnosis on it and it said my plugs was misfiring. We put new plugs and wires on it and still is doing the same thing. What else should I try?
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Monday, February 2nd, 2009 AT 7:21 PM

1 Reply

Tiny
FACTORYJACK
  • MECHANIC
  • 4,159 POSTS
When changing the wires, were any of the coil terminals corroded? Did the diagnosis include which cylinder(s) were misfiring? Possibly a faulty injector with that cylinder. Does it misfire under load, or all t time?
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Monday, February 2nd, 2009 AT 9:00 PM

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