1999 Ford F-150 oxygen sensor

Tiny
JOE1953
  • MEMBER
  • 1999 FORD F-150
  • 5.4L
  • V8
  • RWD
  • AUTOMATIC
  • 200,000 MILES
Had two downstream oxygen sensor replace in the upstream exaust do it make any different wheather it been replace in the upstream exaust?
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Friday, February 20th, 2015 AT 11:05 PM

3 Replies

Tiny
MHPAUTOS
  • EXPERT
The do different jobs, they do look the same but they are not interchangeable.
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Saturday, February 21st, 2015 AT 1:54 AM
Tiny
JOE1953
  • MEMBER
So I need to remove the oxygen to the the right place are that what you saying?
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Saturday, February 21st, 2015 AT 9:13 AM
Tiny
MHPAUTOS
  • EXPERT
The up stream and down stream o2 sensors are not interchangeable, if you have replaced one because of failure you do not have to change the other at the same time, if it is working, do not touch it. You just can't put them in front to back positions that's all.
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Saturday, February 21st, 2015 AT 2:10 PM

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