RepairPal is your advocate for car care advice and guidance

Q: OXYGEN SENSORS on 1997 Ford Explorer

I need both oxygen sensors replaced. What is the approximate cost to have this done?
Get a Repair Estimate
Guaranteed by certified locations nationwide. Learn more
RepairPal estimates are guaranteed at over 1,700 quality certified locations nationwide. Learn more
very odd to have 2 fail at the same time. are you sure?? What were the codes and did you have a real diag or just a code pull.

I'm not sure since it's my daughters vehicle. Someone she took it to said it was both sensors or it could be the fuel injector but they advised her to start with replacing both sensors. It doesn't sound like she really had it checked out so my best bet would be to take it in and see which it is. However, can you give me an approx cost on each. I would just like an idea of what I may be looking at cost wise is all. All I know is you can see the gas guage go down as you drive it and with gas prices as they are I can't afford to use it. Any info would be helpful.
Thank you.
the sensors are about 69 each. the labor is 1.2 hours for both.

i really think before replacing them, you should get a real diag from a shop and let them give you a bid.

I'm with you on that one Roy. My daughter said she took it to AutoZone and that's what the code said was either both sensors or fuel injector. It'll be going to the shop that's for sure. Appreciate your time. Have a good one.
Neither the injector nor the oxygen sensors are at fault.

You may have a MAF issue, or more likely have a vacuum leak. Especially if you have the 4.0L SOHC V6. Intake manifold o-ring gaskets are very common here.

PLEASE do not replace your oxygen sensors without checking it out's just a waste of your hard earned cash.
Thank you for the information. I'll definitely have it checked out before just replacing anything. Thank you for your time and information. It's very helpful.
Just wanted to let you know it is the intake manifold o-ring gaskets that is causing the problem. Thank you so much for all the information you and this site has provided. The Explorer is being fixed as I write this. Thanks again!
Nice! Glad to hear we were of help. Thanks for visiting...come back soon... Take a few minutes and register your car on this site. That way, when you come back, you can log in and instantly connect with tons of reference information specifically linked to your vehicle.
Didn't find what you were looking for?