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2004 Ford F-150 OBD readiness?

Tiny
GEERUSSO
  • MEMBER
  • 2004 FORD F-150
  • V8
  • 4WD
  • AUTOMATIC
  • 62,000 MILES
I am trying to have my truck inspected, but my catalyst and 02 components have not moved to ready and are still incomplete. I have driven through the proper drive cycle laid out by ford more than once and still nothing. I have given at least three cold soaks as well. I am not pulling any codes, is it a question of just time or could their be a malfunction with the cat or and o2 sensor that is not allowing the obd to finish. Wouldn't that pull code though?
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Monday, July 26th, 2010 AT 10:07 AM

2 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,885 POSTS
The cat and O2 sensor have nothing to do with the reset. I would swap out the thermostat because it sounds like it is stuck open not allowing the engine to get up to temperature. That should fix it.
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Monday, July 26th, 2010 AT 10:14 PM
Tiny
BIGMIKAL2006
  • MEMBER
  • 1 POST
I am having same issue and installed a new thermostat, it was broken. Monitors reset.
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Monday, September 17th, 2012 AT 10:01 PM

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