Oxygen sensor

1998 JEEP GRAND CHEROKEE
154,109 MILES • V8 • 4WD • AUTOMATIC
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R_DIZZLE
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How do you know if you have a bad oxygen sensor and will that cause the check engine light to come on?
Nov 19, 2010 at 5:14 PM
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JDL
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I'd check trouble codes before you did anything. Are there any driveability issues. I've seen 02 sensors cause the lite to come on. Without a code or something to point in the right direction, you have no way of knowing the cause.
Nov 19, 2010 at 5:18 PM
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R_DIZZLE
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I can't really say there have been driving issues but I've been told that I may be missing a sensor and I just got my car fixed last week and the light just came on again. Whenever I get a diagnostic it says I have a random cylinder misfire
Nov 19, 2010 at 5:24 PM
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ASYNCTEA
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When I had a bad oxygen sensor on my 98 JGC it acted sorta like a dirty fuel filter -powers loss, but sometimes power surges too -for instance when I was stopped at a stop sign. Don't know how typical that is, but both symptoms stopped when I had it replaced.
Nov 24, 2010 at 11:18 PM
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