1996 Ford Bronco random rough idle

1996 FORD BRONCO
150,000 MILES • V8 • 4WD • AUTOMATIC
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JSTRICKER
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  • 2 POSTS
occasionally i experience rough idle.. the truck seems to run fine other then that.. error code, cylinder 6 misfire is appearing.. could a sensor be bad.?? how do i test??
Mar 5, 2010 at 7:08 AM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,992 POSTS
Check spark plug/wire,fuel injector,and compression on #6 cylinder.
Mar 5, 2010 at 7:57 AM
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JSTRICKER
  • MEMBER
  • 2 POSTS
new wires, new injectors... what should the compression be?
Mar 5, 2010 at 8:21 AM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,992 POSTS


https://images.2carpros.com/forum/automotive_pictures/12900_compression_2.jpg

Compression pressures are considered within specification if the lowest reading cylinder is within 25 percent of the highest reading cylinder. NOTE: Variations exceeding 25 percent indicate an improperly seated valve or worn/broken piston rings.
Mar 5, 2010 at 4:11 PM
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