2004 Ford Ranger engine light comes on( randon miss fire )

Tiny
EPAGANO26
  • MEMBER
  • 2004 FORD RANGER
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 325,000 MILES
Replace. Spark plugs, spark plug cables, catalisti converble, mufflerand pipes. All sensor, fuel injectors, troter, all the parts out side the engine was replase. Compretion on each cylinderis about 90 bls. Across.
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Monday, September 14th, 2009 AT 5:57 PM

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Tiny
RASMATAZ
  • MEMBER
2004 Ford Ranger engine light comes on( randon miss fire ) P0300 normally points to vacuum leaks and bad fuel

Could be caused by the following worn or fouled spark plugs, a weak spark (weak coil, bad spark plug wire), loss of compression, vacuum leaks, anything that causes an unusually lean fuel mixture (lean misfire), an EGR valve that is stuck open, dirty fuel injectors, low fuel pressure, or even bad fuel.
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Monday, September 14th, 2009 AT 6:05 PM

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