Replacing O2 sensors, routine maintenance?
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Joined: Jan 2003
Posts: 4,417
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From: Durham, NC
Replacing O2 sensors, routine maintenance?
I've got a 1999 3.0L FFV Ranger that runs great, averaging around 22MPG. It is getting ready to turn 86K miles, and the only
CEL it has ever had was from a code P0401, which was corrected by changing the DPFE sensor.
I have been hearing a lot about changing out O2 sensors as routine maintenance. My question, what is everybody's feeling on
this especially if it's running good, good MPG, and no CEL????
CEL it has ever had was from a code P0401, which was corrected by changing the DPFE sensor.
I have been hearing a lot about changing out O2 sensors as routine maintenance. My question, what is everybody's feeling on
this especially if it's running good, good MPG, and no CEL????
Last edited by Bob Ayers; Feb 5, 2004 at 11:45 AM.
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Joined: Dec 2001
Posts: 22,436
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From: Louisville,Ky.
They are recommended to be replaced every 60,000 miles. They get coated with carbon over time and do not register as good. This will cause them to tell the PCM to richen the mixture.
It may run ok, but you may pick up some mileage by changing them.
Jimmy
It may run ok, but you may pick up some mileage by changing them.
Jimmy
