Flashing CEL no codes

Asked by colobound Feb 17, 2018 at 08:16 PM about the 2001 Jeep Grand Cherokee Laredo 4WD

Question type: Maintenance & Repair

coming down a mountain pass in 2nd gear.  Get a flashing CEL but engine runs fine.  After upshifting flashing stops.  No codes when checked.  Have replaced all parts associated with CEL.  Any ideas??

1 Answer
39,885

James answered 6 years ago

change in barometric pressure along with over loading the o2 sensors abilities

Mark helpful

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