2000 jeep running rick

Asked by GuruHNF3N Jul 26, 2019 at 08:37 AM about the 2000 Jeep Grand Cherokee Laredo

Question type: Maintenance & Repair

hey i got a 2000 jeep grand Cherokee 4.0 no check engine light on runs very
rich. done the plugs and coil pack 3 times now. what else should i do? theirs
gas in my oil too.

1 Answer
1,095

GuruHBY1Q answered 4 years ago

Odd that it’s not throwing a code. Check the upstream O2 sensors and the mass air flow sensor.

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