engine will crank but will not start

1993 FORD BRONCO
188,000 MILES
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GUNFIXER13
  • MEMBER
  • 2 POSTS
93 Bronco 5.8 motor engine turns over but will not start. fuel pump is coming on. I have replaced the starter solenoid, the starter, the cap, the rotor, still no fire up. before replacing the above- the engine would run but it would barely idle then it would rev up &down-
Nov 16, 2011 at 7:45 AM
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JACOBANDNICKOLAS
  • ✓Experienced Mechanic
  • 110,246 POSTS
The idle problem sounds like a bad idle air control valve or a vacuum leak. However, now it won't start. Have you checked to make sure there is spark to the engine? Have you checked to make sure fuel pressure is within spec?
Nov 16, 2011 at 10:23 AM
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