Completely random CEL for no reason? - Ranger-Forums - The Ultimate Ford Ranger Resource


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Old 03-10-2011
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Completely random CEL for no reason?

Was driving my 3.0 Ranger (114k miles) down the road about 2 minutes after starting it and the CEL came on...I tried to see if anything was happening to diagnose it but everything seems to be running exactly the same. No vibration, no noises, no difference in RPM, nothing. Anyone have any ideas besides a bad sensor or anything? Thanks a million for the help guys.
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Old 03-10-2011
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Can be anything - - - Scan it and start the hunt -- (when was your last fuel fillup?, did'ja leave your cap loose?)
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Old 03-10-2011
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Checking the code with a scanner will let you know what's going on.
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Old 03-10-2011
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My money is on an o2 sensor. Never know till you scan it though.
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Old 03-10-2011
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Ya, a scan should let me know. I'm just trying to avoid paying money for a scan since I don't have a reader.
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Old 03-10-2011
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Advanced Auto Parts and Autozone can read your CEL and print out a sheet of possible culprits FOE FREE.
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Old 03-10-2011
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(inserting brain ninja in a whispering voice)

ultra-gauges scan for codes......
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Old 03-12-2011
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The CEL can come on for a thousand different reasons. Scan it. Anything else is a guess.
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