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4.0L OHV & SOHC V6 Tech General discussion of 4.0L OHV and SOHC V6 Ford Ranger engines.

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Old 02-23-2009
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Icon5 Check Engine Light

My check engine light has been on for a while. bank 1 and 2 is running to rich i had it cleared and went off for a while. my truck has close to 100k on her and from what i hear this is a common problem for a ranger o2 sensors. i have cleaned the mass air flow sensor it did not solve the problem. Do you guys think that its the O2 sensors?
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Old 02-23-2009
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that would be my next step. if you've never replaced them..
you may want to try searching, many people have had this happen. me included.
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Old 02-24-2009
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Change the o2 sensors. There is a few other things that may give you this code but more than likely its the o2 sensor. Plus with that many miles on it it would do you good to replace them anyways
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Old 02-24-2009
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sounds like an o2 sensor
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