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1993 Nissan Pathfinder Running very rough

Tiny
CRIOS28
  • MEMBER
  • 1993 NISSAN PATHFINDER
  • 6 CYL
  • 4WD
  • MANUAL
  • 108,000 MILES
The Pathfinder has began running very over the last couple of days. I replaced the spark plugs, wires, distributor cap, and rotor. It runs very rough and has a hard time accelerating. I also checked the vaccuum hoses and found one that was broken. I repaired the hose but that didn't make a difference.
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Tuesday, January 26th, 2010 AT 9:16 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Engine running rough or misfiring can be caused by 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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Tuesday, January 26th, 2010 AT 9:41 PM

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