What could be wrong with my Ford F-150

Tiny
EDWARD73
  • MEMBER
  • 1915 FORD F-150
The check engine light was on and I took it to Auto Zone and they checked it out and said it was the sensors. We changed all three sensors and the light was still on and is still showing the three sensors. What could be wrong? The sensors are brand new.
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Monday, March 26th, 2007 AT 7:00 AM

6 Replies

Tiny
MERLIN2021
  • EXPERT
Well if we knew what sensors and codes were invovled. Maybe we could help!
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Monday, March 26th, 2007 AT 9:29 AM
Tiny
EDWARD73
  • MEMBER
The sensors are as follows:
o2 sensor heater circuit malfunction (Bank one sensor 1)
02 sensor heater circuit malfuncton ( Bank one sensor 2)
02 sensor heater circuit malfunction ( Bank 2 sensor 1)

I have the reading and this is what is beside of each sensor
P0135= BANK ONE SENSOR 1
P0141= BANK ONE SENSOR 2
P0155= BANK 2 SENSOR 1
THANKS FOR YOUR HELP!
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Monday, March 26th, 2007 AT 12:32 PM
Tiny
EDWARD73
  • MEMBER
I forgot to mention, we changed the bank one sensor one and bank one sensor 2 the first day then the next day had changed the bank 2 sensor 1. Would this have caused it to Malfunction again. We had changed the 2 ( The garage had told us the bank 2 sensor 1 was the same as bank one sensor 2) and drove 100 miles ( Auto zone told us we had to do that everytime we messed with a sensor) and the light never went off. We took it back to Auto zone had them to test it again and it showed the bank two sensor one. We then changed it drove another 100 miles and the light stayed on. Went back to auto zone had it retested and then it showed all 3 sensors were malfunctioning.
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Monday, March 26th, 2007 AT 12:38 PM
Tiny
SIRGIBBY
  • MEMBER
I dont know if this is right or not. I know its the case on the big rigs Ive worked on and some small cars. But once there's a code logged in. Even after the part is changed the code needs to be cleared. Just a thought. Might not be the case on your vehicle. But its worth checking out!
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Monday, March 26th, 2007 AT 1:54 PM
Tiny
EDWARD73
  • MEMBER
After the parts were changed we had reset it and it still came back on.
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Monday, March 26th, 2007 AT 2:10 PM
Tiny
MERLIN2021
  • EXPERT
Have you taken a rubber mallet an tapped on the converters? If they have broken "beds" they need to be replaced before anything else is done.
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Monday, March 26th, 2007 AT 4:27 PM

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