I am a newbie to this forum (and to Ford Ranger ownership) and appreciate the work and support that such groups provide. I purchased a 1999 2.5L Ranger about 3 months ago. Upon purchase, I replaced the Air Bags (very minor front end collision), timing belt, water pump and the front ball joints. Yesterday a new adventure began when my check engine light suddenly came on after an engine "stumble" on the interstate. The local Advance Auto checked for engine codes but there were none although the Engine Check light continues to burn. Reortedly this happens frequently. Now, the engine cuts off at idle. Does anyone have any initial thoughts or ideas for me to pursue.

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1999 Ford Ranger XLT 2.5L

Take it to another parts store. I've not heard of the check engine light staying on without storing a code. My money is on a vacuum leak. Check all vacuum connections and make sure nothing is unplugged. I've had a coil pack come unplugged out of the blue and the symptoms were similar to yours.

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1997 Ford Ranger XLT short bed regular cab
2.3L Lima
5 speed manual