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O2 Sensor Heater Issue All 4 Bad at Once?
I have the knowledge, but not the test light I will have to pick on up. Do you know where the fuse is located? Undressed or pass kick panel? I would assume 2007 and 2012 are the same.- rcarson25
- Post #9
- Forum: Engine & Performance
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O2 Sensor Heater Issue All 4 Bad at Once?
Does anyone know of a relay or a fuse tied to the HEGO system in a 2012 expedition? I have looked in the owners manual and searched but have come up empty so far.- rcarson25
- Post #7
- Forum: Engine & Performance
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O2 Sensor Heater Issue All 4 Bad at Once?
So, cold weather is back and the light is on again. Is anyone on this forum familiar with the HEGO system and why this might be happening?- rcarson25
- Post #6
- Forum: Engine & Performance
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O2 Sensor Heater Issue All 4 Bad at Once?
So, I searched around to see if there were any vacuum leaks or loose sensors that were obvious and I found nothing. However, for some reason the light went off. I have no idea why, but I am wondering if it had to do with the fact the weather warmed up. I will see if it comes back on as our...- rcarson25
- Post #4
- Forum: Engine & Performance
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O2 Sensor Heater Issue All 4 Bad at Once?
I would think this would be rare as well. I looked at the fuse/relay schematic for both the in cabin and underhood panel but I did not see anything that related to the O2 sensors. I did however find a blown power pass seat fuse but I am sure that is completely unrelated. No electrical changes...- rcarson25
- Post #3
- Forum: Engine & Performance
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O2 Sensor Heater Issue All 4 Bad at Once?
I had a check engine light come on the other day on my 2012 Expedition Limited EL with 75000 miles on it. When I pulled the codes there were originally 6 codes, P0135; P0141; P0155; P0161 and then two that had to do with Bank 1 heater circuit getting low volts. I have never had all 4 O2...- rcarson25
- Thread
- Replies: 19
- Forum: Engine & Performance
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No air from rear vents
Ended up being a bad blower motor. Swapped it out for a new one and all works well now.- rcarson25
- Post #7
- Forum: 3rd Gen - 2007 - 2017
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No air from rear vents
I am thinking relay too, or possibly a bad blower motor. I had the wife push the fan speed button while I was in the back and the clicking is definitely coming from the blower motor area. I will have some time tomorrow to go over fuses and relays, will post back once I have a chance to...- rcarson25
- Post #6
- Forum: 3rd Gen - 2007 - 2017
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No air from rear vents
I did test/turn the AC on when I had both together and each individually unplugged. The clicking still occured. I have an actuator on order and will test with the new unit as well, just to completely rule the actuator out, but I don't have much confidence this will be my fix. I have the...- rcarson25
- Post #3
- Forum: 3rd Gen - 2007 - 2017
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No air from rear vents
I have a have a '12 Expedition EL and the rear air is not working. When I turn on the rear air or adjust the fan speed for the rear all I hear is a clicking noise. The noise only happens when I turn the rear air on or adjust fan speed, one click each time I push a button. I have checked both...- rcarson25
- Thread
- Replies: 6
- Forum: 3rd Gen - 2007 - 2017
