2003 Ford Windstar O2 sensor

2003 FORD WINDSTAR
120,000 MILES • 6 CYL • FWD • AUTOMATIC
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HANDYMAN5421
  • MEMBER
  • 1 POST
check engin light came on i used OBD2 code scanner code 136 O2 sensor shot had it replaced two weeks ago check engin light back on code 136 back went back to shop mechanics says i should have changed both is this true?
Jan 19, 2009 at 4:04 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
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BMRFIXIT
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 19,053 POSTS
you do not have two replace two
its beter if you do

Possible causes are :
Damaged wiring harness or Connector
crossed sensor wires
exhaust system leaks
faulty o2 sensor
good luck
Jan 19, 2009 at 4:55 PM
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