+18 2010 Wrangler Check Engine Light Permantly On 2023. Web if your jeep wrangler has a flashing check engine light means that there is a catalyst damaging misfire (it can damage the catalytic converter and o2 sensors). It’s the gas cap that keeps fumes from leaving the fuel tank and keeps the whole system under correct pressure.
Diagnose the problem yourself by buying an obd ii scanner and checking the engine codes. She has 60k miles completely stock. Use an adjustable wrench or a pair of pliers to do this.
