I have a 2004 Jeep Cherokee Laredo. The check engine light comes on and goes off intermittently.

Asked by Jun 11, 2015 at 08:31 PM about the Jeep Grand Cherokee

Question type: Maintenance & Repair

I had a diagnostic at autozone and they said I needed an o2 sensor in bank 1 but that should not be causing intermittent check engine light.  The diagnostics suggested a lose fuse, or wiring problem.  The light was just off for 40 miles and came back on when I put the air conditioning on.  Any ideas...suggestions? I'm due for inspection end of month June 2015 so I'm getting kind of antsy.

2 Answers

64,415

First thing would be to replace the 02,then see if engine light return,s,and yes it will cause the engine light to come and go.

1 of 1 people found this helpful.
11,170

check the wiring to the o2, could be rubbin on some metal somewhere and shortin out.

1 of 1 people found this helpful.

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