1988 Dodge Diplomat Cylinder Miss

1988 DODGE DIPLOMAT
80,000 MILES • V8 • 2WD • AUTOMATIC
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COOLSHARK
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  • 1 POST
Hello, I bought a used 1988 Dodge Diplomat with a 318 and 2 bbl carb, it totally misses on cylinders 6 and 7, (runs perfectly on all the rest), and has reasonably balanced compression all around, (between 130 and 138 for ALL cylinders) I have changed everything, plugs, wires, cap, rotor, coil, elec ignition, (which puts out wonderful spark to all cylinders including the dead ones, (6 and 7), I have even tried mixing and matching all "known to be good " wires, plugs, cap and rotor, coil, in an attempt to make my symptoms move, but 6 and 7 are still dead to the world! I even started the engine with plugs connected to 6 and 7's wires and let them ground to the top of the engine so I could do a visual, and they spark perfectly, (HOT SPARK)! I am very puzzled??? anything you might suggest would be incredibly helpful, Thank You,

Coolshark
Feb 8, 2009 at 8:09 PM
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JACOBANDNICKOLAS
  • ✓ASE Certified Mechanic
  • 110,194 POSTS
  • ASE Certified Mechanic
Hi:
What was the compression on all cylenders? After running the engine, the the two misfiring cylender spark plugs wet with gas?
Mar 11, 2009 at 1:25 PM
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