check engine light
01-08-2013, 10:01 PM
Join Date: Jan 2013
Location: Eastern Oregon
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check engine light
How many sensors should I change after 90,000 miles. My light comes on at lower speeds, then goes off?
01-08-2013, 10:33 PM
Join Date: Oct 2005
Location: Kentucky
Posts: 19,569
If you want to throw money away replace all of them. Otherwise why not check for codes yourself.
What year/model/engine/transmission vehicle are you referring to?
01-09-2013, 11:21 AM
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check engine light
I guess I got worried when I saw the Chilton book suggesting that at least 4 of these sensors be replaced every 15,000 miles. I did actually go down and talk to a mechanic, he said it was the oxygen sensor, no worries unless you want to please the EPA. Thanks for your reply, Randall Ford (yes that is my real middle name)
01-09-2013, 11:58 AM
Join Date: Oct 2005
Location: Kentucky
Posts: 19,569
The O2 sensor does more than keep the EPA folks happy, it will make your wallet happy too by delivering better fuel economy.
You really should get a handle on what code(s) are happening then repairing the root cause.
01-09-2013, 03:06 PM
Join Date: Mar 2005
Location: Mexico, Missouri
Posts: 4,698
Yeah, a faulty O2 will cause many more problems one is wanting to deal with. Get a code reader, verify what is going on and if possible, replace sensors with Motorcraft parts, not cheap knock offs. You can even check for cods with a paperclip if needed too for free.
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