02 sensor 2009 jeep

Asked by chrismac383 Mar 19, 2016 at 11:37 AM about the 2009 Jeep Grand Cherokee Laredo 4WD

Question type: Maintenance & Repair

engine light keeps coming on. code says 02 sensor. mechanic replaced and
problem did not correct. I have a code reader so can reset. It has gone as
long as 3 weeks before light came on, but in most cases I can reset and is
okay until i shut off and start for second time after reset.

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