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Failing O2 sensor

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Old Nov 30, 2018 | 05:34 AM
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Failing O2 sensor

My code reader (scan tool) is reading a bad O2 sensor, upstream Bank 1. Sadly for me I've injured my left shoulder pretty bad so working under the vehicle on jackstands right now is not optional for me for fear that I'll further hyper-extended and or tear my muscles and bicep tendon further.

So, I called the dealer. 30 minutes labor, a diagnostic fee of $95.00 and depending on which side, the bill will either be $215.00 or $340.00. Apparently one side has a more expensive sensor than the other and the service writer can't seem to explain. I'm having the dealer do both upstream sensors at once if that's what the diagnosis is and the bill will be $440.00.

Oddly the truck is running the same and giving me the same MPG's so it must not be that bad yet but bad enough to throw a code.
 
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Old Nov 30, 2018 | 05:43 AM
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They still charge a diagnostic fee if they do the work? That would be unusual.

Might be cheaper to have a non-dealer (like Midas ir sonething) do the work. They’d probably still have to buy the sensor from the dealer, but you should pay alot less for labor.
 
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Old Nov 30, 2018 | 06:46 AM
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Tim, sorry to hear about your shoulder. As far as the O2 sensors, I did them on friends 2011 EB last year do to O2 CEL (I forget what the codes were at the time). There is a difference in the length of wire between the left/right bank upstream sensors - otherwise I couldn't tell you what the difference is.

The pricing at that time on RockAuto for PNs Motorcraft DY1184 and DY1185 were for $47 and $53. Now it looks like they are $64 and $143... unsure why the price increase. That said, the DY1185 looks to be less expensive on Amazon.

If you have a good relationship with the dealer, could ask if there is some wiggle room in the pricing. If you lived closer, I would offer to swing by and replace them in exchange for a 6-pack
 
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Old Nov 30, 2018 | 07:41 AM
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Have the dealer drop the diagnosis fee. Tell them it's just a R&R and you specify the parts. There is a shortage of the 85 sensor currently which has caused a price jump.


Do we have anyone close to the OP? If I was closer I would help a long time FTE member out for some beer and swap them, I know I have received plenty of help over the years from FTE
 
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Old Nov 30, 2018 | 07:59 AM
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Originally Posted by ford390gashog
Have the dealer drop the diagnosis fee. Tell them it's just a R&R and you specify the parts. There is a shortage of the 85 sensor currently which has caused a price jump.


Do we have anyone close to the OP? If I was closer I would help a long time FTE member out for some beer and swap them, I know I have received plenty of help over the years from FTE
I doubt that dropping the diag fee will help. Any work I’ve had at dealers, the diag fee was credited back if you had them do the repair.
 
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Old Nov 30, 2018 | 11:01 AM
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Originally Posted by unibody62


I doubt that dropping the diag fee will help. Any work I’ve had at dealers, the diag fee was credited back if you had them do the repair.
I just said that because where I am at diagnosis fee isn't credited towards final repairs. Its shown as a separate line item on the final invoice. There is always labor for diagnosis and labor for repair charged.
 
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Old Nov 30, 2018 | 08:41 PM
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When I mentioned that I could get the sensors much cheaper, they offered to go to Napa to get aftermarket sensors for less money but stated that the warranty would not apply.

I'm kinda looking for the dealer diagnostic test to make me assured that there isn't something else going on. The truck has been so damned perfect for the entire 88,000 miles that I've driven it and I want to make sure that nothing more serious is happening.

I told my wife this morning that I'll pay to replace a sensor or two, I'll perform the normal routine maintenance but if this thing starts to show signs that I'm going to get nickeled and dimed, It's going away real quick before nickels and dimes turn into real serious cash.

You guys humble me. Thank you so much for your kind thoughts and words. If any of you are ever in SE Virginia, I have a steak and a cold one with your name on it!!!! And for good measure, if one cold one turns into a few, I have two spare beds.
 
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Old Dec 4, 2018 | 11:13 AM
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Update

So my little $120.00 hand held scanner was dead on accurate not only with the code but also with the language of the failing part.

#2 bank upstream sensor is experiencing low voltage. So, it's failing enough to throw a code. Sadly this happens to be the more expensive of the two sensors. I should be rolling again by this evening.
 
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Old Dec 4, 2018 | 02:44 PM
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Originally Posted by tseekins

#2 bank upstream sensor is experiencing low voltage. So, it's failing enough to throw a code. Sadly this happens to be the more expensive of the two sensors. I should be rolling again by this evening.
Just curious, without knowing the specific code it’s throwing, how does it know that the sensor is failing? Perhaps that bank is running rich and the O2 sensor is generating a low voltage signal to inform the PCM of the condiction.

Will your scan tool graph the sensor’s output so you can see its behavior?
 
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Old Dec 4, 2018 | 03:29 PM
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I did get a specific code for Bank 2 sensor 1 and the language indicated a low voltage which is what the dealer relayed right back to me.

There's no way that a simple hand held scanner is going to do all that a dealer's machine will do but it did put me where I needed to be.
 
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Old Dec 5, 2018 | 10:14 AM
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Glad to hear they were able to get you up and running quick and that the scanner worked so well in accurate diagnosis.

I have a cheap-o amazon $10 bluetooth OBD deal that I'm lucky to get codes out of, let alone a description.
 
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