1998 Ford Taurus Error Code P0304

1998 FORD TAURUS
126,000 MILES • 6 CYL • FWD • AUTOMATIC
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ZALASTRA
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Car started shaking, so took in to get it checked. Cat. Converter was bad, so that was replaced, but car was still shaking. Quick diagnostic code showed miss-fire on cyl 4.
Changed the plugs and wires, shaking was still there, changed the coil pack next, shaking still there.
Going to reset the error code and see if same error comes back.
If it does, what would be the next item that you would check or replace? The EGR Valve? O2 sensor? Fuel Injectors?
Mar 29, 2010 at 1:11 PM
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RASMATAZ
  • ✓ASE Certified Mechanic
  • 75,992 POSTS
  • ASE Certified Mechanic
Check fuel injector and compression on #4 cylinder.
Mar 29, 2010 at 4:05 PM
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