Mechanics

OXYGEN SENSOR

1998 Jeep Grand Cherokee • V8 4WD Automatic • 154,109 miles

How do you know if you have a bad oxygen sensor and will that cause the check engine light to come on?
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R_dizzle
November 19, 2010.




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.

JDL
Nov 19, 2010.
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
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Tiny
R_dizzle
Nov 19, 2010.
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.

Tiny
Asynctea
Nov 24, 2010.

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