Rough running/idling Cherokee
12-16-2013, 10:50 AM
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Join Date: Oct 2013
Location: Irvine, Ky
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Year: 1996
Model: Cherokee
Engine: 4.0
The fix for my '96 was Upstream 02 sensor, which made an improvement but still idled rough/accelerated rough so a new Throttle Position Sensor fixed that. My downstream 02 is still throwing codes, but doesn't affect performance just fuel economy. Hope this helps.
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